Saturday, July 26, 2014

String.format()

Simple example using String.format().


package com.example.androidstringformat;

import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.os.Bundle;


public class MainActivity extends ActionBarActivity {
 
 EditText edit1, edit2;
 TextView textOut;
 Button buttonPrint;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        edit1 = (EditText)findViewById(R.id.edit1);
        edit2 = (EditText)findViewById(R.id.edit2);
     textOut = (TextView)findViewById(R.id.printout);
     buttonPrint = (Button)findViewById(R.id.buttonprint);
     
     buttonPrint.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    String str1 = edit1.getText().toString();
    String str2 = edit2.getText().toString();
    String strOut = String.format("%s\n%S", str1, str2);
    
    textOut.setText(strOut);
   }});
    }

}


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.androidstringformat.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:autoLink="web"
        android:text="http://android-er.blogspot.com/"
        android:textStyle="bold" />
    <EditText
        android:id="@+id/edit1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <EditText
        android:id="@+id/edit2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <Button
        android:id="@+id/buttonprint"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=" - Print - " />
    <TextView
        android:id="@+id/printout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

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