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技術堆棧---6.0新特性之運行時權(quán)限

2019-11-09 14:56:51

字體：大中小

來源：轉(zhuǎn)載

供稿：網(wǎng)友

public class MainActivity extends AppCompatActivity { PRivate Button button; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button= (Button) findViewById(R.id.mbtn); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //判斷用戶是不是已經(jīng)授權(quán)了 !=為沒授權(quán) if(ContextCompat.checkSelfPermission( MainActivity.this, //第二個參數(shù)為具體權(quán)限名 Manifest.permission.CALL_PHONE)!= PackageManager.PERMISSION_GRANTED){ //向用戶申請授權(quán) ActivityCompat.requestPermissions( MainActivity.this, //申請權(quán)限名的數(shù)組 new String[]{Manifest.permission.CALL_PHONE}, //參數(shù)三為請求碼 1); }else { call(); } } }); } private void call() { //必須要捕獲一下異常才可以 try { Intent intent=new Intent(Intent.ACTION_CALL); intent.setData(Uri.parse("tel:10086")); startActivity(intent); }catch (SecurityException e){ e.printStackTrace(); } } @Override //當用戶點擊完申請權(quán)限的彈窗以后都會回調(diào)到這個方法中 // 授權(quán)的記過封裝在grantResults參數(shù)中 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { switch (requestCode){ case 1: if (grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){ call(); }else{ Toast.makeText(this,"You denied the permission",Toast.LENGTH_SHORT).show(); } break; default: break; } }}

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