Android 申请权限

import java.util.ArrayList;
import java.util.List;


import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.view.KeyEvent;


/**
 * 继承了Activity，实现Android6.0的运行时权限检测
 * 需要进行运行时权限检测的Activity可以继承这个类
 * 
 * @创建时间：2016年5月27日 下午3:01:31 
 * @项目名称： AMapLocationDemo
 * @author hongming.wang
 * @文件名称：PermissionsChecker.java
 * @类型名称：PermissionsChecker
 * @since 2.5.0
 */
public class CheckPermissionsActivity extends Activity
implements
ActivityCompat.OnRequestPermissionsResultCallback {
/**
* 需要进行检测的权限数组
*/
protected String[] needPermissions = {
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.READ_PHONE_STATE
};

private static final int PERMISSON_REQUESTCODE = 0;

/**
* 判断是否需要检测，防止不停的弹框
*/
private boolean isNeedCheck = true;

@Override
protected void onResume() {
super.onResume();
if(isNeedCheck){
checkPermissions(needPermissions);
}
}

/**
* 
* @param needRequestPermissonList
* @since 2.5.0
*
*/
private void checkPermissions(String... permissions) {
List<String> needRequestPermissonList = findDeniedPermissions(permissions);
if (null != needRequestPermissonList
&& needRequestPermissonList.size() > 0) {
ActivityCompat.requestPermissions(this,
needRequestPermissonList.toArray(
new String[needRequestPermissonList.size()]),
PERMISSON_REQUESTCODE);
}
}


/**
* 获取权限集中需要申请权限的列表
* 
* @param permissions
* @return
* @since 2.5.0
*
*/
private List<String> findDeniedPermissions(String[] permissions) {
List<String> needRequestPermissonList = new ArrayList<String>();
for (String perm : permissions) {
if (ContextCompat.checkSelfPermission(this,
perm) != PackageManager.PERMISSION_GRANTED
|| ActivityCompat.shouldShowRequestPermissionRationale(
this, perm)) {
needRequestPermissonList.add(perm);
} 
}
return needRequestPermissonList;
}


/**
* 检测是否说有的权限都已经授权
* @param grantResults
* @return
* @since 2.5.0
*
*/
private boolean verifyPermissions(int[] grantResults) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}


@Override
public void onRequestPermissionsResult(int requestCode,
String[] permissions, int[] paramArrayOfInt) {
if (requestCode == PERMISSON_REQUESTCODE) {
if (!verifyPermissions(paramArrayOfInt)) {
showMissingPermissionDialog();
isNeedCheck = false;
}
}
}


/**
* 显示提示信息
* 
* @since 2.5.0
*
*/
private void showMissingPermissionDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(R.string.notifyTitle);
builder.setMessage(R.string.notifyMsg);


// 拒绝, 退出应用
builder.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});


builder.setPositiveButton(R.string.setting,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
startAppSettings();
}
});


builder.setCancelable(false);


builder.show();
}


/**
*  启动应用的设置
* 
* @since 2.5.0
*
*/
private void startAppSettings() {
Intent intent = new Intent(
Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
intent.setData(Uri.parse("package:" + getPackageName()));
startActivity(intent);
}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_BACK){
this.finish();
return true;
}
return super.onKeyDown(keyCode, event);
}

}