整理的Android多種控件步驟

Notification步驟：

1、onCreate方法中mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

2、在點擊事件事件監聽中：

  Notification notification=new Notification(R.drawable.earlybird, "小鳥飛 啊飛", System.currentTimeMillis());

  Intent intent=new Intent(MainActivity.this,SecondActivity.class);

  PendingIntent contentIntent=PendingIntent.getActivity(MainActivity.this, 0, intent, 0);

  notification.setLatestEventInfo(MainActivity.this, "憤怒的小雞", "憤怒的小鳥與憤怒的小雞", contentIntent);

  notification.flags=Notification.FLAG_AUTO_CANCEL;//點擊后自動消失

  mNotificationManager.notify(1, notification);

Toast步驟：

   1、Toast.makeText(MainActivity.this, "我是憤怒的小雞", Toast.LENGTH_SHORT).show();

   //切記記得.show()方法，讓Toast顯示出來

  //Toast不會獲取焦點，提示消息過了一段時間會自動消失,不需要用戶去點擊確認，也不需要用戶去反饋

  //在應用的其他界面依然能夠看到Toast提示

Dialog步驟：

第一種方法：

1、創建創建AlertDialog.Builder對象  

  AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);

2 、設置對話框標題，內容，圖標

   builder.setTitle("退出");

   builder.setIcon(R.drawable.earlybird);

   builder.setMessage("是否真的退出？");

3、設置對話框的按鈕

  builder.setPositiveButton("確定", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(MainActivity.this, "刪除成功", Toast.LENGTH_LONG).show();

}

});

   builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(MainActivity.this, "取消刪除", Toast.LENGTH_LONG).show();

}

});

4、通過AlertDialog.Builde對象創建AlertDialog對象

  AlertDialog dialog = builder.create();

  dialog.show();

第二種方法：

1、在點擊監聽事件中showDialog(1);

2、重寫OnCreateDialog方法

  protected Dialog onCreateDialog(int id) {

switch (id) {

case 1:

dialog=dialog_1();

break;

default:

break;

}

return dialog;

}

3、重寫dialog_1()方法：

  private AlertDialog dialog_1() {

AlertDialog.Builder builder = new AlertDialog.Builder(

MainActivity.this);

builder.setTitle("退出");

builder.setIcon(R.drawable.earlybird);

builder.setMessage("是否真的退出？");

builder.setPositiveButton("確定",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog,

int which) {

Toast.makeText(MainActivity.this, "刪除成功",

Toast.LENGTH_LONG).show();

}

});

builder.setNegativeButton("取消",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog,

int which) {

Toast.makeText(MainActivity.this, "取消刪除",

Toast.LENGTH_LONG).show();

}

});

return builder.create();

}

optionMenu步驟：

第一種方法：

1、在onCreateOptionsMenu方法中

  public boolean onCreateOptionsMenu(Menu menu) {

menu.add(0, 1, 0, "設置");

menu.add(0, 2, 0, "幫助");

menu.add(0, 3, 0, "添加");

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

2、重寫onOptionsItemSelected方法

  public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case 1:

Toast.makeText(this, "成功進入設置", Toast.LENGTH_LONG).show();

break;

case 2:

Toast.makeText(this, "成功進入幫助", Toast.LENGTH_LONG).show();

break;

case 3:

Toast.makeText(this, "成功進入添加", Toast.LENGTH_LONG).show();

break;

default:

break;

}

return super.onOptionsItemSelected(item);

}

第二種方法：

1、在menu文件夾中創建xml文件

2、重寫重寫onOptionsItemSelected方法

  public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case R.id.item1:

Toast.makeText(this, "呵呵", Toast.LENGTH_LONG).show();

break;

case R.id.item2:

Toast.makeText(this, "哈哈", Toast.LENGTH_LONG).show();

default:

break;

}

return super.onOptionsItemSelected(item);

}

ContextMenu步驟：

1、在onCreate方法中

  tv = (TextView) findViewById(R.id.textView1);

  registerForContextMenu(tv);

2、重寫onCreateContextMenu方法

  public void onCreateContextMenu(ContextMenu menu, View v,

ContextMenuInfo menuInfo) {

menu.add(0,1,0,"復制");

menu.add(0, 2, 0, "編輯");

super.onCreateContextMenu(menu, v, menuInfo);

}

3、重寫onContextItemSelected方法

   public boolean onContextItemSelected(MenuItem item) {

switch (item.getItemId()) {

case 1:

Toast.makeText(this, "復制成功", Toast.LENGTH_LONG).show();

break;

case 2:

Toast.makeText(this, "粘貼成功", Toast.LENGTH_LONG).show();

default:

break;

}

return super.onContextItemSelected(item);

   }