【实例简介】

【实例截图】

【核心代码】

package com.example.dsgj;

import android.support.v7.app.ActionBarActivity;

import android.support.v7.app.ActionBar;

import android.support.v4.app.Fragment;

import android.content.ContentResolver;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.provider.Settings;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

private Button set;

Handler handler=new Handler();

Runnable runnable=new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

//要做的事情

airplane();

}

};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

if (savedInstanceState == null) {

getSupportFragmentManager().beginTransaction()

.add(R.id.container, new PlaceholderFragment())

.commit();

}

set = (Button)findViewById(R.id.ok);

set.setOnClickListener(new Button.OnClickListener(){

@SuppressWarnings("deprecation")

public void onClick(View v)

{

EditText time_box = (EditText )findViewById(R.id.time);

// time_box.setText("30");

final String time=time_box.getText().toString();

int num= Integer.parseInt(time);

num=num*1000*60;

final int Time=num;

final String text="手机将在" time "分钟后进入飞行模式！！";

handler.removeCallbacks(runnable);

//Toast提示控件

Toast.makeText(getApplicationContext(), text,

Toast.LENGTH_SHORT).show();

handler.postDelayed(runnable, Time);//每两秒执行一次runnable.

}

});

}

public void airplane()

{

ContentResolver cr = getContentResolver();

if(Settings.System.getString(cr,Settings.System.AIRPLANE_MODE_ON).equals("0")){

//获取当前飞行模式状态,返回的是String值0,或1.0为关闭飞行,1为开启飞行

//如果关闭飞行,则打开飞行

Settings.System.putString(cr,Settings.System.AIRPLANE_MODE_ON, "1");

Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);

sendBroadcast(intent);

}else{

//否则关闭飞行

Settings.System.putString(cr,Settings.System.AIRPLANE_MODE_ON, "0");

Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);

sendBroadcast(intent);

}

handler.removeCallbacks(runnable);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

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

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

if (id == R.id.tuichu) {

this.finish();

return true;

}

return super.onOptionsItemSelected(item);

}

/**

* A placeholder fragment containing a simple view.

*/

public static class PlaceholderFragment extends Fragment {

public PlaceholderFragment() {

}

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View rootView = inflater.inflate(R.layout.fragment_main, container, false);

return rootView;

}

}

}