main activity
package com.exercise.AndroidResult;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class AndroidResultActivity extends Activity {
final static int REQ_CODE = 1;
TextView tvResultCode;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tvResultCode = (TextView)findViewById(R.id.resultcode);
Button btnStartActivity2 = (Button)findViewById(R.id.startactivity2);
btnStartActivity2.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(AndroidResultActivity.this, Activity2.class);
startActivityForResult(intent, REQ_CODE);
}});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if(requestCode == REQ_CODE){
if (resultCode == RESULT_OK){
tvResultCode.setText("RESULT_OK");
}else if(resultCode == RESULT_CANCELED){
tvResultCode.setText("RESULT_CANCELED");
}
}
}
}
main.xml
<?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/startactivity2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Start Activity 2"
/>
<TextView
android:id="@+id/resultcode"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
Sub-activity
package com.exercise.AndroidResult;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class Activity2 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);
Button btnReturnOK = (Button)findViewById(R.id.returnOK);
btnReturnOK.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i = new Intent();
setResult(RESULT_OK, i);
finish();
}});
Button btnReturnCancel = (Button)findViewById(R.id.returnCancel);
btnReturnCancel.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i = new Intent();
setResult(RESULT_CANCELED, i);
finish();
}});
}
}
<?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/returnOK"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="return OK"
/>
<Button
android:id="@+id/returnCancel"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="return Cancel"
/>
</LinearLayout>
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