近日，，做了一个长按powerkey触发dialog然后包含“关机”,"重启"，“飞行模式”三个button功能的应用。现将该应用的主文件做一下记录，方便日后查阅：
软件版本：android4.4
//源码如下：
package com.heimi.power; import com.heimi.power.R;import android.app.Activity;import android.app.Service;import android.content.pm.ActivityInfo;import android.os.Bundle;import android.os.Vibrator;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.view.WindowManager;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import android.util.Log;import android.content.Intent;import android.content.IntentFilter;import android.content.Context;import android.content.ComponentName;import android.app.ActivityManager;import android.content.BroadcastReceiver;import android.provider.Settings;public class PowerKey extends Activity implements OnClickListener{ private ImageView restartView, poweroffView, airView; private TextView cancelView; private final int CLICK_CANCEL = 1; private final int CLICK_RESET = 2; private final int CLICK_POWER = 3; private final int CLICK_AIR = 4; static final String ACTION = "android.intent.action.SCREEN_OFF"; static final String ANAME = "PowerKey"; protected BroadcastReceiver broadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(ACTION)){ ActivityManager am = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE); ComponentName cn = am.getRunningTasks(1).get(0).topActivity; if (cn.getClassName().contains(ANAME)) { context.unregisterReceiver(broadcastReceiver); finish(); } } } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_SCREEN_OFF);registerReceiver(broadcastReceiver, filter, null, null); getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); setContentView(R.layout.main); airView = (ImageView) findViewById(R.id.iv_dormancy_pattern); airView.setOnClickListener(this); airView.setTag(CLICK_AIR); if (getAirplaneModeStatus()) { airView.setImageDrawable(getResources().getDrawable(R.drawable.dormancy_pattern_normal)); } else { airView.setImageDrawable(getResources().getDrawable(R.drawable.dormancy_pattern_pressed)); } cancelView = (TextView) findViewById(R.id.iv_cancel); cancelView.setOnClickListener(this); cancelView.setTag(CLICK_CANCEL); restartView = (ImageView) findViewById(R.id.iv_restart); restartView.setOnClickListener(this); restartView.setTag(CLICK_RESET); poweroffView = (ImageView) findViewById(R.id.iv_shutdown); poweroffView.setOnClickListener(this); poweroffView.setTag(CLICK_POWER); } @Override public void onStop() { super.onStop(); } @Override public void onResume() { super.onResume(); } @Override public void onRestart() { super.onRestart(); } //获取飞行模式关闭或开启状态 private boolean getAirplaneModeStatus() { boolean status = Settings.Global.getInt(this.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0) == 1 ? true : false; return status; } //开启或关闭飞行模式 private void setAirplaneMode(Context context, boolean enable) { Settings.Global.putInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); Intent airIntent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); airIntent.putExtra("state", enable); context.sendBroadcast(airIntent); } public void onClick(View v) { int tag = (Integer) v.getTag(); switch (tag) { case CLICK_CANCEL: this.finish(); break; case CLICK_RESET: Intent resetIntent = new Intent(Intent.ACTION_REBOOT); resetIntent.putExtra("nowait", 1); resetIntent.putExtra("interval", 1); resetIntent.putExtra("window", 0); sendBroadcast(resetIntent); break; case CLICK_POWER: Intent powerIntent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); powerIntent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); //其中false换成true,会弹出是否关机的确认窗口 powerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(powerIntent); break; case CLICK_AIR: if (getAirplaneModeStatus()) { setAirplaneMode(this, false); airView.setImageDrawable(getResources().getDrawable(R.drawable.dormancy_pattern_pressed)); } else { setAirplaneMode(this, true); airView.setImageDrawable(getResources().getDrawable(R.drawable.dormancy_pattern_normal)); } break; } }}
O(∩_∩)O~，。。。。先告一段落，未完待续！
怠惰是贫穷的制造厂。
