maven {
url 'https://maven.google.com/'
name 'Google'
}
String[] suggestion = getResources().getStringArray(R.array.suggestion);
ArrayAdapter<String> adapter =
new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, suggestion);
package com.blogspot.android_er.androidwriteimage;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActivity {
final String MyAlbum = "android-er";
Bitmap bitmapSrc;
TextView tvSavedInfo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvSavedInfo = (TextView)findViewById(R.id.savedinfo);
dispTestCase();
//prepare dummy source of bitmap to save
Drawable drawable = getDrawable(R.mipmap.ic_launcher);
bitmapSrc = BitmapFactory.decodeResource(
getApplicationContext().getResources(),
R.mipmap.ic_launcher);
ImageView ivImage;
ivImage = findViewById(R.id.imageView1);
ivImage.setImageDrawable(drawable);
Button btnSave;
btnSave = (Button)findViewById(R.id.buttonSave);
btnSave.setOnClickListener(btnOnClickListener);
}
public File getPublicAlbumStorageDir(String albumName) {
// Get the directory for the user's public pictures directory.
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES), albumName);
if (file.mkdirs()) {
//if directory not exist
Toast.makeText(getApplicationContext(),
file.getAbsolutePath() + " created",
Toast.LENGTH_LONG).show();
}else{
Toast.makeText(getApplicationContext(),
"Directory not created", Toast.LENGTH_LONG).show();
}
return file;
}
Button.OnClickListener btnOnClickListener = new Button.OnClickListener(){
@Override
public void onClick(View v) {
tvSavedInfo.setText("");
writeImage();
}
};
private void writeImage(){
//generate a unique file name from timestamp
Date date = new Date();
SimpleDateFormat simpleDateFormat =
new SimpleDateFormat("yyMMdd-hhmmss-SSS");
String fileName = "img" + simpleDateFormat.format(new Date()) + ".jpg";
File dir = getPublicAlbumStorageDir(MyAlbum);
File file = new File(dir, fileName);
OutputStream outputStream = null;
try {
outputStream = new FileOutputStream(file);
bitmapSrc.compress(Bitmap.CompressFormat.JPEG, 80, outputStream);
outputStream.flush();
outputStream.close();
tvSavedInfo.setText("File saved: \n" + file.getAbsolutePath());
} catch (FileNotFoundException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"FileNotFoundException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
private void dispTestCase(){
String testCase;
TextView tvTestCase;
tvTestCase = (TextView)findViewById(R.id.testcase);
testCase = "Tested on Android " + Build.VERSION.RELEASE + "\n";
PackageManager packageManager = getPackageManager();
String packageName = getPackageName();
int targetSdkVersion;
try {
PackageInfo packageInfo =
packageManager.getPackageInfo(packageName, 0);
ApplicationInfo applicationInfo = packageInfo.applicationInfo;
targetSdkVersion = applicationInfo.targetSdkVersion;
testCase += "targetSdkVersion = " + targetSdkVersion;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"NameNotFoundException: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
tvTestCase.setText(testCase);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
tools:context=".MainActivity">
<TextView
android:id="@+id/addr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="android-er.blogspot.com"
android:textSize="20dp"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Write Image to External Storage"
android:textSize="26dp"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/addr" />
<TextView
android:id="@+id/testcase"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="26dp"
android:textColor="#A00000"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/title"/>
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/testcase" />
<TextView
android:id="@+id/savedinfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/imageView1"/>
<Button
android:id="@+id/buttonSave"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click to save"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/savedinfo" />
</android.support.constraint.ConstraintLayout>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.blogspot.android_er.androidwriteimage">
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
package com.blogspot.android_er.androidwriteimage;
import android.Manifest;
import android.app.Activity;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActivity {
final String MyAlbum = "android-er";
Bitmap bitmapSrc;
TextView tvSavedInfo;
Activity thisActivity;
final int MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
thisActivity = this;
tvSavedInfo = (TextView)findViewById(R.id.savedinfo);
dispTestCase();
//prepare dummy source of bitmap to save
Drawable drawable = getDrawable(R.mipmap.ic_launcher);
bitmapSrc = BitmapFactory.decodeResource(
getApplicationContext().getResources(),
R.mipmap.ic_launcher);
ImageView ivImage;
ivImage = findViewById(R.id.imageView1);
ivImage.setImageDrawable(drawable);
Button btnSave;
btnSave = (Button)findViewById(R.id.buttonSave);
btnSave.setOnClickListener(btnOnClickListener);
}
public File getPublicAlbumStorageDir(String albumName) {
// Get the directory for the user's public pictures directory.
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES), albumName);
if (file.mkdirs()) {
//if directory not exist
Toast.makeText(getApplicationContext(),
file.getAbsolutePath() + " created",
Toast.LENGTH_LONG).show();
}else{
Toast.makeText(getApplicationContext(),
"Directory not created", Toast.LENGTH_LONG).show();
}
return file;
}
Button.OnClickListener btnOnClickListener = new Button.OnClickListener(){
@Override
public void onClick(View v) {
tvSavedInfo.setText("");
if (ContextCompat.checkSelfPermission(thisActivity,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Permission is not granted
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(
thisActivity,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
//to simplify, call requestPermissions again
Toast.makeText(getApplicationContext(),
"shouldShowRequestPermissionRationale",
Toast.LENGTH_LONG).show();
ActivityCompat.requestPermissions(thisActivity,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
} else {
// No explanation needed; request the permission
ActivityCompat.requestPermissions(thisActivity,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
}
}else{
// permission granted
writeImage();
}
}
};
@Override
public void onRequestPermissionsResult(int requestCode,
@NonNull String[] permissions,
@NonNull int[] grantResults) {
if(requestCode == MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE){
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted.
Toast.makeText(getApplicationContext(),
"permission was granted, thx:)",
Toast.LENGTH_LONG).show();
} else {
// permission denied.
Toast.makeText(getApplicationContext(),
"permission denied! Oh:(",
Toast.LENGTH_LONG).show();
}
return;
}else{
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
private void writeImage(){
//generate a unique file name from timestamp
Date date = new Date();
SimpleDateFormat simpleDateFormat =
new SimpleDateFormat("yyMMdd-hhmmss-SSS");
String fileName = "img" + simpleDateFormat.format(new Date()) + ".jpg";
File dir = getPublicAlbumStorageDir(MyAlbum);
File file = new File(dir, fileName);
OutputStream outputStream = null;
try {
outputStream = new FileOutputStream(file);
bitmapSrc.compress(Bitmap.CompressFormat.JPEG, 80, outputStream);
outputStream.flush();
outputStream.close();
tvSavedInfo.setText("File saved: \n" + file.getAbsolutePath());
} catch (FileNotFoundException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"FileNotFoundException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
private void dispTestCase(){
String testCase;
TextView tvTestCase;
tvTestCase = (TextView)findViewById(R.id.testcase);
testCase = "Tested on Android " + Build.VERSION.RELEASE + "\n";
PackageManager packageManager = getPackageManager();
String packageName = getPackageName();
int targetSdkVersion;
try {
PackageInfo packageInfo =
packageManager.getPackageInfo(packageName, 0);
ApplicationInfo applicationInfo = packageInfo.applicationInfo;
targetSdkVersion = applicationInfo.targetSdkVersion;
testCase += "targetSdkVersion = " + targetSdkVersion;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"NameNotFoundException: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
tvTestCase.setText(testCase);
}
}
package com.blogspot.android_er.androidgetmodelinfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tvInfo, tvSdkInfo;
tvInfo = (TextView)findViewById(R.id.info);
tvSdkInfo = (TextView)findViewById(R.id.sdkinfo);
String manufacturer = Build.MANUFACTURER;
String model = Build.MODEL;
String release = Build.VERSION.RELEASE;;
tvInfo.setText(
manufacturer + "\n"
+ model + "\n"
+ "Android: " + release + "\n");
PackageManager packageManager = getPackageManager();
String packageName = getPackageName();
int targetSdkVersion, minSdkVersion;
int versionCode;
String versionName;
try {
PackageInfo packageInfo =
packageManager.getPackageInfo(packageName, 0);
/*
versionCode was deprecated in API level 28.
Use getLongVersionCode() instead, which includes both this
and the additional versionCodeMajor attribute. The version
number of this package, as specified by the <manifest>
tag's versionCode attribute.
*/
versionCode = packageInfo.versionCode;
versionName = packageInfo.versionName;
ApplicationInfo applicationInfo = packageInfo.applicationInfo;
/*
targetSdkVersion added in API level 4
minSdkVersion added in API level 24
*/
targetSdkVersion = applicationInfo.targetSdkVersion;
minSdkVersion = applicationInfo.minSdkVersion;
tvSdkInfo.setText("targetSdkVersion = " + targetSdkVersion + "\n"
+ "minSdkVersion = " + minSdkVersion + "\n"
+ "versionCode: " + versionCode + "\n"
+ "versionName: " + versionName);
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"NameNotFoundException: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
tools:context=".MainActivity">
<TextView
android:id="@+id/addr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="android-er.blogspot.com"
android:textSize="20dp"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get device Model info"
android:textSize="24dp"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/addr" />
<TextView
android:id="@+id/info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="24dp"
android:textColor="#D00000"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/title"/>
<TextView
android:id="@+id/sdkinfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="24dp"
android:textColor="#0000D0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/info"/>
</android.support.constraint.ConstraintLayout>
package com.blogspot.android_er.androidgetmodelinfo;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tvInfo;
tvInfo = (TextView)findViewById(R.id.info);
String manufacturer = Build.MANUFACTURER;
String model = Build.MODEL;
String release = Build.VERSION.RELEASE;;
tvInfo.setText(
manufacturer + "\n"
+ model + "\n"
+ "Android: " + release + "\n");
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
tools:context=".MainActivity">
<TextView
android:id="@+id/addr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="android-er.blogspot.com"
android:textSize="20dp"
android:textStyle="italic"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Get device Model info"
android:textSize="24dp"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/addr" />
<TextView
android:id="@+id/info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="24dp"
android:textColor="#D00000"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/title"/>
</android.support.constraint.ConstraintLayout>
 |
| Samsung Galaxy A9, SM-A9000 |
 |
| Xiaomi's Redmi Note 4 |
android {
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_6
targetCompatibility JavaVersion.VERSION_1_6
}
}
dataBinding {
enabled = true
}
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable name="user" type="com.blogspot.android_er.myandroidinfo.MainActivity.User"/>
</data>
<android.support.constraint.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My device info"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:textStyle="bold"/>
<TextView
android:id="@+id/mylink"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android-er.blogspot.com"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/title" />
<TextView
android:id="@+id/myArchitecture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text='@{user.bArchitecture, default="Architecture"}'
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/mylink"
android:gravity="left"
android:textSize="30dp"/>
<TextView
android:id="@+id/myRelease"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text='@{user.bRelease, default="Release"}'
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/myArchitecture"
android:gravity="left"
android:textSize="30dp"/>
<TextView
android:id="@+id/myDensity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text='@{user.bDensity, default="Density"}'
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/myRelease"
android:gravity="left"
android:textSize="30dp"/>
<TextView
android:id="@+id/myNumber"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@{user.bNum}"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/myDensity"
android:gravity="left"
android:textSize="50dp"
android:textStyle="italic|bold"
android:textColor="#0000FF"/>
</android.support.constraint.ConstraintLayout>
</layout>
package com.blogspot.android_er.myandroidinfo;
import android.databinding.DataBindingUtil;
import android.databinding.ObservableField;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.DisplayMetrics;
import com.blogspot.android_er.myandroidinfo.databinding.ActivityMainBinding;
public class MainActivity extends AppCompatActivity {
public class User {
public final String bArchitecture;
public final String bRelease;
public final String bDensity;
public final ObservableField<String> bNum = new ObservableField<>();
public User(String arch, String rel, String den) {
this.bArchitecture = arch;
this.bRelease = rel;
this.bDensity = den;
}
}
private class MyTask extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... voids) {
for (int i = 0; i < 20; i++) {
user.bNum.set(String.valueOf(i));
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
return null;
}
}
User user;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String arch = System.getProperty("os.arch");
String release = Build.VERSION.RELEASE;
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int dpi = metrics.densityDpi;
ActivityMainBinding binding =
DataBindingUtil.setContentView(this, R.layout.activity_main);
user = new User(arch, release, String.valueOf(dpi));
binding.setUser(user);
new MyTask().execute();
}
}
package com.blogspot.android_er.myandroidinfo;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.DisplayMetrics;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tvMyArch = findViewById(R.id.myArchitecture);
TextView tvMyRelease = findViewById(R.id.myRelease);
TextView tvMyDensity = findViewById(R.id.myDensity);
String arch = System.getProperty("os.arch");
tvMyArch.setText(arch);
String release = Build.VERSION.RELEASE;
tvMyRelease.setText(release);
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int dpi = metrics.densityDpi;
tvMyDensity.setText(String.valueOf(dpi));
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="My device info"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:textStyle="bold"/>
<TextView
android:id="@+id/mylink"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android-er.blogspot.com"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/title" />
<TextView
android:id="@+id/myArchitecture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Architecture"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/mylink"
android:gravity="left"
android:textSize="30dp"/>
<TextView
android:id="@+id/myRelease"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Release"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/myArchitecture"
android:gravity="left"
android:textSize="30dp"/>
<TextView
android:id="@+id/myDensity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Density"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/myRelease"
android:gravity="left"
android:textSize="30dp"/>
</android.support.constraint.ConstraintLayout>
Announced on 22 January 2019,
Wikimedia Foundation is partnering with Google on a set of initiatives to support a shared commitment of making information more accessible to more people around the world.
Through these partnerships, Google and Wikimedia will be working together to create new and expanded programs to empower editors to create local language content on Wikipedia, as well as developing improved translation tools. To strengthen and support Wikipedia and its mission for generations to come, Google.org will also be contributing $1.1 million to the Wikimedia Foundation and $2 million to the Wikimedia Endowment
Source: Google and Wikimedia Foundation partner to increase knowledge equity online
package com.blogspot.android_er.androidimagedecoder;
import android.animation.ObjectAnimator;
import android.animation.TimeInterpolator;
import android.app.Activity;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ImageDecoder;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.PostProcessor;
import android.graphics.drawable.AnimatedImageDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.IOException;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView imageView1 = findViewById(R.id.gifimage1);
ImageView imageView2 = findViewById(R.id.gifimage2);
loadGif(imageView1);
loadRoundGif(imageView2);
imageView1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
prepareObjectAnimatorRotate((ImageView)v);
}
});
imageView2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
prepareObjectAnimatorAlpha((ImageView)v);
}
});
}
PostProcessor myPostProcessor =
new PostProcessor(){
@Override
public int onPostProcess(
Canvas canvas) {
// This will create rounded corners.
Path path = new Path();
path.setFillType(Path.FillType.INVERSE_EVEN_ODD);
int width = canvas.getWidth();
int height = canvas.getHeight();
path.addRoundRect(0, 0,
width, height, 150, 150,
Path.Direction.CW);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.TRANSPARENT);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
canvas.drawPath(path, paint);
return PixelFormat.TRANSLUCENT;
}
};
ImageDecoder.OnHeaderDecodedListener myOnHeaderDecodedListener =
new ImageDecoder.OnHeaderDecodedListener(){
@Override
public void onHeaderDecoded
(ImageDecoder decoder,
ImageDecoder.ImageInfo info,
ImageDecoder.Source source) {
decoder.setPostProcessor(myPostProcessor);
}
};
private void loadGif(ImageView iv){
try {
ImageDecoder.Source source =
ImageDecoder.createSource(getResources(), R.drawable.android_er);
Drawable drawable = ImageDecoder.decodeDrawable(source);
iv.setImageDrawable(drawable);
if (drawable instanceof AnimatedImageDrawable) {
((AnimatedImageDrawable) drawable).start();
Toast.makeText(getApplicationContext(),
"loadGif: Animation started",
Toast.LENGTH_LONG).show();
}
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"loadGif: IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
private void loadRoundGif(ImageView iv){
try {
ImageDecoder.Source source =
ImageDecoder.createSource(getResources(), R.drawable.android_er);
//Drawable drawable = ImageDecoder.decodeDrawable(source);
Drawable drawable = ImageDecoder.decodeDrawable(source,
myOnHeaderDecodedListener);
iv.setImageDrawable(drawable);
if (drawable instanceof AnimatedImageDrawable) {
((AnimatedImageDrawable) drawable).start();
Toast.makeText(getApplicationContext(),
"loadRoundGif: Animation started",
Toast.LENGTH_LONG).show();
}
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"loadRoundGif: IOException: \n" + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
private void prepareObjectAnimatorRotate(ImageView image){
TimeInterpolator timeInterpolator =
new AccelerateDecelerateInterpolator();
float propertyStart = 0f;
float propertyEnd = 360f;
String propertyName = "rotation";
ObjectAnimator objectAnimator
= ObjectAnimator.ofFloat(
image, propertyName, propertyStart, propertyEnd);
objectAnimator.setDuration(5000);
objectAnimator.setRepeatCount(1);
objectAnimator.setRepeatMode(ObjectAnimator.REVERSE);
objectAnimator.setInterpolator(timeInterpolator);
objectAnimator.start();
}
private void prepareObjectAnimatorAlpha(ImageView image){
TimeInterpolator timeInterpolator =
new AccelerateDecelerateInterpolator();
float propertyStart = 1f;
float propertyEnd = 0f;
String propertyName = "alpha";
ObjectAnimator objectAnimator
= ObjectAnimator.ofFloat(
image, propertyName, propertyStart, propertyEnd);
objectAnimator.setDuration(5000);
objectAnimator.setRepeatCount(1);
objectAnimator.setRepeatMode(ObjectAnimator.REVERSE);
objectAnimator.setInterpolator(timeInterpolator);
objectAnimator.start();
}
}