Modify main.xml to add a ImageView to display the returned image
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/loadimage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Load Image"
/>
<TextView
android:id="@+id/targeturi"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<ImageView
android:id="@+id/targetimage"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
Modify the code to load image using BitmapFactory.
package com.exercise.AndroidSelectImage;
import java.io.FileNotFoundException;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class AndroidSelectImage extends Activity {
TextView textTargetUri;
ImageView targetImage;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button buttonLoadImage = (Button)findViewById(R.id.loadimage);
textTargetUri = (TextView)findViewById(R.id.targeturi);
targetImage = (ImageView)findViewById(R.id.targetimage);
buttonLoadImage.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 0);
}});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK){
Uri targetUri = data.getData();
textTargetUri.setText(targetUri.toString());
Bitmap bitmap;
try {
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(targetUri));
targetImage.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Remark@2012-07-14: Recently found that it cannot display large image, such as original photos from camera ~ but I don't know why no error reported!!! Refer to the update post: Scale bitmap Efficiently.
Related:
- Convert URI to real path format
- Read EXIF of JPG file
3 comments:
what android version run this? I tried 2.3.3 sdk in emultor(with sd card) but not run?
what android version run this? I tried 2.3.3 sdk in emultor(with sd card) but not run?
emulator do NOT proceed>>>
[2012-07-13 19:58:42 - AndroidSelectImage] ------------------------------
[2012-07-13 19:58:42 - AndroidSelectImage] Android Launch!
[2012-07-13 19:58:42 - AndroidSelectImage] adb is running normally.
[2012-07-13 19:58:42 - AndroidSelectImage] Performing com.deitel.androidselectimage.AndroidSelectImage activity launch
[2012-07-13 19:58:42 - AndroidSelectImage] Automatic Target Mode: Preferred AVD 'Note_GB' is not available. Launching new emulator.
[2012-07-13 19:58:42 - AndroidSelectImage] Launching a new emulator with Virtual Device 'Note_GB'
[2012-07-13 19:58:42 - Emulator] emulator: warning: opening audio input failed
[2012-07-13 19:58:42 - Emulator]
[2012-07-13 19:58:43 - AndroidSelectImage] New emulator found: emulator-5554
[2012-07-13 19:58:43 - AndroidSelectImage] Waiting for HOME ('android.process.acore') to be launched...
hello lse123,
I don't know your exact case, but according to your log, it seem that the emulator not yet started!
And I found that the code cannot display large image on ImageView, refer to the post: Scale bitmap Efficiently.
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