Android 应用获取通知栏权限是否开启，并跳转设置界面

项目用了极光推送，但是在一些手机收不到通知，上网搜索些资料，首先感谢阿豪02、太书红叶，整合一下，不足希望大家纠正。

1.获取权限工具类

public class NotificationsUtils {

private static final String CHECK_OP_NO_THROW = "checkOpNoThrow";

private static final String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";

@SuppressLint("NewApi")

public static boolean isNotificationEnabled(Context context) {

if (Build.VERSION.SDK_INT >= 24) {

return NotificationManagerCompat.from(context).areNotificationsEnabled() ;

} else if (Build.VERSION.SDK_INT >= 19) {

AppOpsManager appOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);

ApplicationInfo appInfo = context.getApplicationInfo();

String pkg = context.getApplicationContext().getPackageName();

int uid = appInfo.uid;

try {

Class appOpsClass = Class.forName(AppOpsManager.class.getName());

Method checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE, Integer.TYPE, String.class);

Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);

int value = (int) opPostNotificationValue.get(Integer.class);

return ((int) checkOpNoThrowMethod.invoke(appOps, value, uid, pkg) == AppOpsManager.MODE_ALLOWED);

} catch (ClassNotFoundException | NoSuchMethodException | NoSuchFieldException | InvocationTargetException | IllegalAccessException | RuntimeException e) {

return true;

}

} else {

return true;

}

}

}

---

2. 跳转到应用权限设置界面

if (!NotificationsUtils.isNotificationEnabled(this)) {

final AlertDialog dialog = new AlertDialog.Builder(this).create();

dialog.show();

View view = View.inflate(this, R.layout.dialog, null);

dialog.setContentView(view);

TextView context = (TextView) view.findViewById(R.id.tv_dialog_context);

context.setText("检测到您没有打开通知权限，是否去打开");

TextView confirm = (TextView) view.findViewById(R.id.btn_confirm);

confirm.setText("确定");

confirm.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

dialog.cancel();

Intent localIntent = new Intent();

localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

if (Build.VERSION.SDK_INT >= 9) {

localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");

localIntent.setData(Uri.fromParts("package", MainActivity.this.getPackageName(), null));

} else if (Build.VERSION.SDK_INT <= 8) {

localIntent.setAction(Intent.ACTION_VIEW);

localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails"); localIntent.putExtra("com.android.settings.ApplicationPkgName", MainActivity.this.getPackageName());

} startActivity(localIntent);

}

});

TextView cancel = (TextView) view.findViewById(R.id.btn_off);

cancel.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

dialog.cancel();

}

});

}