权限校验方法
PackageManager packageManager=getPackageManager();
if(PERMISSION_GRANTED==packageManager.checkPermission("android.permission.WRITE_EXTERNAL_STORAGE","com.actiview.batterymanage")){
MyToast.show(MainActivity.this,"写有权限");
}else {
MyToast.show(MainActivity.this,"写无权限");
}
校验是否有权限,如果没有去获取权限
if (ContextCompat.checkSelfPermission(MainActivity.this,
"android.permission.WRITE_EXTERNAL_STORAGE")!= PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
"android.permission.WRITE_EXTERNAL_STORAGE")) {
} else {
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{"android.permission.WRITE_EXTERNAL_STORAGE",
"android.permission.READ_EXTERNAL_STORAGE"}, 1);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 1) {
for (int i = 0; i < permissions.length; i++) {
if (grantResults[i] == PERMISSION_GRANTED) {
Toast.makeText(this, "" + "权限" + permissions[i] + "申请成功", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "" + "权限" + permissions[i] + "申请失败", Toast.LENGTH_SHORT).show();
}
}
}
}