| package com.example.android.apis.app; |
| |
| import com.example.android.apis.R; |
| |
| import android.app.Activity; |
| import android.app.PendingIntent; |
| import android.app.PendingIntent.CanceledException; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.widget.Button; |
| |
| /** |
| * Example of various Intent flags to modify the activity stack. |
| */ |
| public class IntentActivityFlags extends Activity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| setContentView(R.layout.intent_activity_flags); |
| |
| // Watch for button clicks. |
| Button button = (Button)findViewById(R.id.flag_activity_clear_task); |
| button.setOnClickListener(mFlagActivityClearTaskListener); |
| button = (Button)findViewById(R.id.flag_activity_clear_task_pi); |
| button.setOnClickListener(mFlagActivityClearTaskPIListener); |
| } |
| |
| /** |
| * This creates an array of Intent objects representing the back stack |
| * for a user going into the Views/Lists API demos. |
| */ |
| //BEGIN_INCLUDE(intent_array) |
| private Intent[] buildIntentsToViewsLists() { |
| // We are going to rebuild our task with a new back stack. This will |
| // be done by launching an array of Intents, representing the new |
| // back stack to be created, with the first entry holding the root |
| // and requesting to reset the back stack. |
| Intent[] intents = new Intent[3]; |
| |
| // First: root activity of ApiDemos. |
| // This is a convenient way to make the proper Intent to launch and |
| // reset an application's task. |
| intents[0] = Intent.makeRestartActivityTask(new ComponentName(this, |
| com.example.android.apis.ApiDemos.class)); |
| |
| Intent intent = new Intent(Intent.ACTION_MAIN); |
| intent.setClass(IntentActivityFlags.this, com.example.android.apis.ApiDemos.class); |
| intent.putExtra("com.example.android.apis.Path", "Views"); |
| intents[1] = intent; |
| |
| intent = new Intent(Intent.ACTION_MAIN); |
| intent.setClass(IntentActivityFlags.this, com.example.android.apis.ApiDemos.class); |
| intent.putExtra("com.example.android.apis.Path", "Views/Lists"); |
| |
| intents[2] = intent; |
| return intents; |
| } |
| //END_INCLUDE(intent_array) |
| |
| private OnClickListener mFlagActivityClearTaskListener = new OnClickListener() { |
| public void onClick(View v) { |
| startActivities(buildIntentsToViewsLists()); |
| } |
| }; |
| |
| private OnClickListener mFlagActivityClearTaskPIListener = new OnClickListener() { |
| public void onClick(View v) { |
| Context context = IntentActivityFlags.this; |
| //BEGIN_INCLUDE(pending_intent) |
| PendingIntent pi = PendingIntent.getActivities(context, 0, |
| buildIntentsToViewsLists(), PendingIntent.FLAG_UPDATE_CURRENT); |
| //END_INCLUDE(pending_intent) |
| try { |
| pi.send(); |
| } catch (CanceledException e) { |
| Log.w("IntentActivityFlags", "Failed sending PendingIntent", e); |
| } |
| } |
| }; |
| } |