Bật Chế độ trên máy bay trên tất cả các cấp API theo lập trình Android

Question

cách bật/tắt chế độ trên máy bay theo chương trình trên nút bấm của một nút? tôi đã cố gắng này

// read the airplane mode setting 
    boolean isEnabled = Settings.System.getInt(
    getContentResolver(), 
    Settings.System.AIRPLANE_MODE_ON, 0) == 1; 

// toggle airplane mode 
Settings.System.putInt(
    getContentResolver(), 
    Settings.System.AIRPLANE_MODE_ON, isEnabled ? 0 : 1); 

// Post an intent to reload 
Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 
intent.putExtra("state", !isEnabled); 
sendBroadcast(intent); 

nhưng tôi nhận được lỗi "Hệ thống không thể được giải quyết hay không là một lĩnh vực" vì nó đòi hỏi API 16 trở lên

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

là có cách nào làm việc làm như vậy mà hoạt động trên tất cả các cấp api?

Answer 1

chính

package com.example.tutorial; 
import android.annotation.SuppressLint; 
import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.provider.Settings; 
import android.provider.Settings.Global; 
import android.view.View; 
import android.widget.Toast; 

public class MainActivity extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 
} 

@SuppressLint("InlinedApi") 
private static boolean isAirplaneModeOn(Context context) { 

return Settings.System.getInt(context.getContentResolver(), 
Global.AIRPLANE_MODE_ON, 0) != 0; 

} 

@SuppressLint("NewApi") 
public void airplaneModeOn(View view) { 
try { 

android.provider.Settings.System.putInt(getContentResolver(), 
Global.AIRPLANE_MODE_ON, 
isAirplaneModeOn(getApplicationContext()) ? 0 : 1); 

Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 
intent.putExtra("state", !isAirplaneModeOn(getApplicationContext())); 
sendBroadcast(intent); 
} catch (Exception e) { 
Toast.makeText(this, "Exception occured during Airplane Mode ON", Toast.LENGTH_LONG) 
.show(); 
} 
} 
} 

main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".MainActivity" > 

    <Button 
     android:id="@+id/toggleButton1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     android:layout_centerVertical="true" 
     android:text="Toggle" 
     android:onClick="airplaneModeOn" /> 

</RelativeLayout> 

manifest.xml

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

Answer 2

public class MainActivity extends AppCompatActivity { 
private static final String TAG = "AirplaneModeActivity"; 
private final String COMMAND_FLIGHT_MODE_1 = "settings put global airplane_mode_on"; 
private final String COMMAND_FLIGHT_MODE_2 = "am broadcast -a android.intent.action.AIRPLANE_MODE --ez state"; 
ToggleButton toggleBtn; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    toggleBtn = (ToggleButton) findViewById(R.id.toggle_btn); 
    toggleBtn.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      setFlightMode(MainActivity.this); 


     } 

     public void setFlightMode(Context context) { 
      if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) { 
       // API 17 onwards. 
       if (isRooted(context)) { 
        int enabled = isFlightModeEnabled(context) ? 0 : 1; 
        // Set Airplane/Flight mode using su commands. 
        String command = COMMAND_FLIGHT_MODE_1 + " " + enabled; 
        executeCommandWithoutWait(context, "-c", command); 
        command = COMMAND_FLIGHT_MODE_2 + " " + enabled; 
        executeCommandWithoutWait(context, "-c", command); 
       } else { 
        try { 
         // No root permission, just show Airplane/Flight mode setting screen. 
         Intent intent = new Intent(Settings.ACTION_AIRPLANE_MODE_SETTINGS); 
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
         context.startActivity(intent); 
        } catch (ActivityNotFoundException e) { 
         Log.e(TAG, "Setting screen not found due to: " + e.fillInStackTrace()); 
        } 
       } 
      } else { 
       // API 16 and earlier. 
       boolean enabled = isFlightModeEnabled(context); 
       Settings.System.putInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, enabled ? 0 : 1); 
       Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 
       intent.putExtra("state", !enabled); 
       sendBroadcast(intent); 
      } 
     } 

     private boolean isRooted(Context context) { 

      // get from build info 
      String buildTags = android.os.Build.TAGS; 
      if (buildTags != null && buildTags.contains("test-keys")) { 
       return true; 
      } 

      // check if /system/app/Superuser.apk is present 
      try { 
       File file = new File("/system/app/Superuser.apk"); 
       if (file.exists()) { 
        return true; 
       } 
      } catch (Exception e1) { 
       // ignore 
      } 

      // try executing commands 
      return canExecuteCommand("/system/xbin/which su") 
        || canExecuteCommand("/system/bin/which su") || canExecuteCommand("which su"); 
     } 

     // executes a command on the system 
     private boolean canExecuteCommand(String command) { 
      boolean executedSuccesfully; 
      try { 
       Runtime.getRuntime().exec(command); 
       executedSuccesfully = true; 
      } catch (Exception e) { 
       executedSuccesfully = false; 
      } 

      return executedSuccesfully; 
     } 



     @SuppressLint("NewApi") 
     @SuppressWarnings("deprecation") 
     private boolean isFlightModeEnabled(Context context) { 
      boolean mode = false; 
      if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) { 
       // API 17 onwards 
       mode = Settings.Global.getInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0) == 1; 
      } else { 
       // API 16 and earlier. 
       mode = Settings.System.getInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) == 1; 
      } 
      return mode; 
     } 

     private void executeCommandWithoutWait(Context context, String option, String command) { 
      boolean success = false; 
      String su = "su"; 
      for (int i = 0; i < 3; i++) { 
       // "su" command executed successfully. 
       if (success) { 
        // Stop executing alternative su commands below. 
        break; 
       } 
       if (i == 1) { 
        su = "/system/xbin/su"; 
       } else if (i == 2) { 
        su = "/system/bin/su"; 
       } 
       try { 
        // execute command 
        Runtime.getRuntime().exec(new String[]{su, option, command}); 
       } catch (IOException e) { 
        Log.e(TAG, "su command has failed due to: " + e.fillInStackTrace()); 
       } 
      } 

      //boolean isEnabled = Settings.System.getInt(this.getContentResolver(),Settings.System.AIRPLANE_MODE_ON, 0) == 1; 
       Settings.Global.putInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, setFlightMode(context); ? 0 : 1); 


     } 
    });