qixiinghaitang

<?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">

<Button android:id="@+id/createShortcut"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textSize="20px"
android:text="创建快捷键"/>

<Button android:id="@+id/exit"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textSize="20px"
android:text="退出"/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="eoe.demo" android:versionCode="1"
android:versionName="1.0">

<application android:icon="@drawable/icon"
android:label="@string/app_name">
<activity android:name=".ShortCutAction"
android:label="@string/app_name">
<intent-filter>

<action android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

</application>
<uses-sdk android:minSdkVersion="7" />

<!-- 添加快捷键权限 -->
<uses-permission
android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
</manifest>

package apkbus.demo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

/**
* 通过应用程序创建快捷方式
* 
* @author jiqinlin
*
*/

public class ShortCutAction extends Activity implements OnClickListener{
private Button createShortcut=null; //创建快捷键按钮
private Button exit=null;//退出系统

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

createShortcut=(Button)findViewById(R.id.createShortcut);
exit=(Button)findViewById(R.id.exit);
createShortcut.setOnClickListener(this);
exit.setOnClickListener(this);
}

public void onClick(View v) {
//Button btn=(Button)v;
switch (v.getId()) {
case R.id.createShortcut:
//String title=getResources().getString(R.string.title);
Intent addIntent=new Intent("com.android.launcher.action.INSTALL_SHORTCUT");
Parcelable icon=Intent.ShortcutIconResource.fromContext(this, R.drawable.png); 
//获取快捷键的图标
Intent myIntent=new Intent(this, ShortCutAction.class);
addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, "快捷方式");//快捷方式的标题
addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, icon);//快捷方式的图标
addIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, myIntent);//快捷方式的动作
sendBroadcast(addIntent);//发送广播
break;
case R.id.exit:
System.exit(0);
break;
}
}
}

<?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">
<ToggleButton android:id="@+id/tb"
android:layout_width="fill_parent"
android:layout_height="wrap_content" 
android:textOn="停止获取电量信息"
android:textOff="获取电量信息" />
<TextView android:id="@+id/tv" 
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>

package eoe.demo;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.ToggleButton;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class BatteryActivity extends Activity {
private ToggleButton tb=null;
private TextView tv=null;
private BatteryReceiver receiver=null;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

receiver=new BatteryReceiver();
tv=(TextView)findViewById(R.id.tv);
tb=(ToggleButton)findViewById(R.id.tb);
tb.setOnCheckedChangeListener(new OnCheckedChangeListener(){

public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
//获取电池电量

if(isChecked){
IntentFilter filter=new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(receiver, filter);//注册BroadcastReceiver
}else {
//停止获取电池电量
unregisterReceiver(receiver);
tv.setText(null);
}

}
});

}

private class BatteryReceiver extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
int current=intent.getExtras().getInt("level");//获得当前电量
int total=intent.getExtras().getInt("scale");//获得总电量
int percent=current*100/total;
tv.setText("现在的电量是"+percent+"%。");
}
}

}