Android 6.0動態添加權限

Android 6.0加入了動態權限，權限有普通權限和危險權限兩種，其中危險權限在6.0以上的手機是需要動態添加權限的，舉例：撥打10086

//-----------------布局文件---------------

<Button
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="撥打10086"
 android:onClick="button"/>


//-----------清單文件中添加權限----------------------------

<uses-permission android:name="android.permission.CALL_PHONE" />


//-----------------Activity中----------------------------------------

package dongtaiquanxian.bwie.com.dongtaiquanxian;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 }
 public void button(View view){
 // 判斷環境兼容，檢查自己的權限，是否被同意
 if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CALL_PHONE)!= PackageManager.PERMISSION_GRANTED){
 //如果不同意，就去請求權限 參數1：上下文，2：權限，3：請求碼
 ActivityCompat.requestPermissions(MainActivity.this,new String []{Manifest.permission.CALL_PHONE},1);
 }else {
 //同意就撥打
 call();
 }

 }

 private void call() {
 Intent intent=new Intent(Intent.ACTION_CALL);
 intent.setData(Uri.parse("tel:10086"));
 try {
 startActivity(intent);
 } catch (Exception e) {
 e.printStackTrace();
 }
 }

 @Override
 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 //判斷請求碼
 switch (requestCode){
 case 1:
 //如果同意，就撥打
 if (grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){
 call();
 }else{
 Toast.makeText(this,"哈哈哈",Toast.LENGTH_SHORT).show();
 }
 break;
 }
 }
}

//------------就這么簡單-----------------