1. package com.jackie.ui;  
    2.   
    3. import static android.util.Log.d;  
    4. import android.app.Activity;  
    5. import android.appwidget.AppWidgetHost;  
    6. import android.appwidget.AppWidgetManager;  
    7. import android.appwidget.AppWidgetProviderInfo;  
    8. import android.content.Intent;  
    9. import android.os.Bundle;  
    10. import android.view.View;  
    11. import android.view.View.OnLongClickListener;  
    12. import android.widget.FrameLayout;  
    13. import android.widget.FrameLayout.LayoutParams;  
    14.   
    15. /**
    16.  * 在activity中，长按，弹出widget选择界面，
    17.  * 选择的widget有配置就先弹出，
    18.  * 创建widget的view 将view加载到 activity中
    19.  */  
    20. public class AddWidgetActivity extends Activity {  
    21. private AppWidgetHost mAppWidgetHost;  
    22. private AppWidgetManager mAppWidgetManager;  
    23. private FrameLayout frameLayout;  
    24. private static final int REQUEST_PICK_APPWIDGET = 1;  
    25. private static final int REQUEST_CREATE_APPWIDGET = 2;    
    26. private static final int APPWIDGET_HOST_ID = 0x100;     //用于标识  
    27. private static final String EXTRA_CUSTOM_WIDGET = "custom_widget";  
    28.       
    29. @Override  
    30. public void onCreate(Bundle savedInstanceState) {  
    31. super.onCreate(savedInstanceState);  
    32.           
    33.         mAppWidgetManager = AppWidgetManager.getInstance(getApplicationContext());  
    34. new AppWidgetHost(getApplicationContext(), APPWIDGET_HOST_ID);  
    35. //开始监听widget的变化  
    36.         mAppWidgetHost.startListening();  
    37.           
    38. new FrameLayout(this);  
    39. new OnLongClickListener() {  
    40.               
    41. @Override  
    42. public boolean onLongClick(View v) {  
    43.                 showWidgetChooser();  
    44. return true;  
    45.             }  
    46.         });  
    47.         setContentView(frameLayout);  
    48.     }  
    49.       
    50. @Override  
    51. protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    52. if (resultCode == RESULT_OK) {  
    53. switch (requestCode) {  
    54. case REQUEST_PICK_APPWIDGET:  
    55.                 addAppWidget(data);  
    56. break;  
    57. case REQUEST_CREATE_APPWIDGET:  
    58.                 completeAddAppWidget(data);  
    59. break;  
    60.             }  
    61. else if (requestCode == REQUEST_PICK_APPWIDGET &&  
    62. null) {  
    63. // Clean up the appWidgetId if we canceled  
    64. int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);  
    65. if (appWidgetId != -1) {  
    66.                 mAppWidgetHost.deleteAppWidgetId(appWidgetId);  
    67.             }  
    68.         }  
    69.     }  
    70.       
    71. /**
    72.      * 选中了某个widget之后，根据是否有配置来决定直接添加还是弹出配置activity
    73.      * @param data
    74.      */  
    75. private void addAppWidget(Intent data) {  
    76. int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);  
    77.   
    78.         String customWidget = data.getStringExtra(EXTRA_CUSTOM_WIDGET);  
    79. "addAppWidget", "data:"+ customWidget);  
    80. if ("search_widget".equals(customWidget)) {  
    81. //这里直接将search_widget删掉了  
    82.             mAppWidgetHost.deleteAppWidgetId(appWidgetId);  
    83. else {  
    84.             AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);  
    85.               
    86. "addAppWidget", "configure:"+ appWidget.configure);  
    87. if (appWidget.configure != null) {  
    88. //有配置，弹出配置  
    89. new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);  
    90.                 intent.setComponent(appWidget.configure);  
    91.                 intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);  
    92.   
    93.                 startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);  
    94. else {  
    95. //没有配置，直接添加  
    96.                 completeAddAppWidget(data);  
    97.             }  
    98.         }  
    99.     }  
    100.       
    101. /**
    102.      * 请求添加一个新的widget:用于选取系统中的widget
    103.      */  
    104. private void showWidgetChooser() {  
    105. int appWidgetId = mAppWidgetHost.allocateAppWidgetId();  
    106. new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);  
    107.         pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);  
    108.         startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);  
    109.     }      
    110.       
    111. /**
    112.      * 添加widget
    113.      * @param data
    114.      */  
    115. private void completeAddAppWidget(Intent data) {  
    116.         Bundle extras = data.getExtras();  
    117. int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);  
    118.   
    119. "completeAddAppWidget", "dumping extras content="+extras.toString());  
    120. "completeAddAppWidget", "appWidgetId:"+ appWidgetId);  
    121.         AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);  
    122.           
    123. this, appWidgetId, appWidgetInfo);  
    124. new LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, appWidgetInfo.minHeight));  
    125.         frameLayout.addView(hostView);   
    126.     }  
    127.   
    128. }