Android應用程序無法在API級別工作> 17

Question

我正在開發一個接收消息並更改配置文件的Android應用程序。該應用程序有一個Activity和一個Broadcast Receiver。問題是，該應用程序工作完全正常爲API水平直到17年，但之後Broadcast Receiver不 似乎工作。我提到了我的MainActivity和BroadCast Receiver以及gradle文件的代碼。

MainActivity.java

public class MainActivity extends AppCompatActivity { 
    public EditText setPass; 
    public Button submit; 
    public static String password; 
    //Context context; 
    SharedPreferences sharedPreferences; 
    boolean b=false; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     //context=getApplicationContext(); 
     setPass=(EditText)findViewById(R.id.setPassEditId); 
     submit=(Button)findViewById(R.id.submitButtonId); 
     sharedPreferences= getApplicationContext().getSharedPreferences("Pritom",Context.MODE_PRIVATE); 
     submit.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       try { 
        password = setPass.getText().toString(); 

        SharedPreferences.Editor editor = sharedPreferences.edit(); 
        editor.putString("password", password); 
        editor.commit(); 
        Toast.makeText(getApplicationContext(), "Password saved successfully" + password, Toast.LENGTH_LONG).show(); 
       } catch (Exception e){ 
        e.printStackTrace(); 
       } 
       //b=sharedPreferences.contains("password")?true:false; 
       //Toast.makeText(getApplicationContext(),"b:"+b,Toast.LENGTH_LONG).show(); 

       sharedPreferences=getApplicationContext().getSharedPreferences("Pritom",Context.MODE_PRIVATE); 
       Map<String,?> keys=sharedPreferences.getAll(); 
       for(Map.Entry<String,?> entry:keys.entrySet()){ 
        Toast.makeText(getApplicationContext(),entry.getKey()+":"+entry.getValue().toString(),Toast.LENGTH_LONG).show(); 

       } 
      } 
     }); 

    } 

} 

MyReceiver.java

public class MyReceiver extends BroadcastReceiver { 
    public AudioManager audioManager; 
    public String me = ""; 
    public String last = ""; 
    public static final String SMS_BUNDLE = "pdus"; 
    public SharedPreferences sharedPreferences; 
    public static final String MyPREFERENCES = "MyPrefs"; 
    boolean b = false; 
    @Override 
    public void onReceive(Context context, Intent intent) { 

     try { 

      sharedPreferences = context.getApplicationContext().getSharedPreferences("Pritom", context.MODE_PRIVATE); 
      b = sharedPreferences.contains("password") ? true : false; 
      if (b) { 
       Toast.makeText(context.getApplicationContext(), "Present", Toast.LENGTH_LONG).show(); 
      } else { 
       Toast.makeText(context.getApplicationContext(), "Not present", Toast.LENGTH_LONG).show(); 
      } 

      audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); 
     } catch (Exception e){ 
      e.printStackTrace(); 
     } 

      Bundle bundle = intent.getExtras(); 
      SmsMessage[] msgs = null; 
      String str = ""; 
      if (bundle != null) { 
       String pass3 = sharedPreferences.getString("password", null); 
       Object[] pdus = (Object[]) bundle.get("pdus"); 
       msgs = new SmsMessage[pdus.length]; 
       for (int i = 0; i < msgs.length; i++) { 
        msgs[i] = SmsMessage.createFromPdu((byte[]) pdus[i]); 
        str += "SMS from " + msgs[i].getOriginatingAddress(); 
        str += " :"; 
        str += msgs[i].getMessageBody().toString(); 
        //str += "n"; 

        String smsBody = msgs[i].getMessageBody().toString(); 
        Log.d("Message",smsBody+pass3); 
        Toast.makeText(context,"pass:"+pass3,Toast.LENGTH_LONG).show(); 
        if (smsBody.equals("@general" + pass3)) { 
         AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); 

          audioManager.setRingerMode(audioManager.RINGER_MODE_NORMAL); 

        } 
       } 

       Toast.makeText(context, str, Toast.LENGTH_LONG).show(); 
      } 

     } 
    } 
    ... 
} 

在receiver類的問題是，沒有Toast消息越來越顯示API level>17(Jelly Bean)但工作完全正常在API level<=17

構建：gradle這個（模塊：APP）

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 25 
    buildToolsVersion "25.0.2" 
    defaultConfig { 
     applicationId "com.example.shaloin.profile2" 
     minSdkVersion 14 
     targetSdkVersion 25 
     versionCode 1 
     versionName "1.0" 
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 
     exclude group: 'com.android.support', module: 'support-annotations' 
    }) 
    compile 'com.android.support:appcompat-v7:25.3.1' 
    compile 'com.android.support.constraint:constraint-layout:1.0.2' 
    testCompile 'junit:junit:4.12' 
} 

的AndroidManifest.xml

`

<uses-permission android:name="android.permission.INTERNET"/> 
<uses-permission android:name="android.permission.READ_SMS"/> 
<uses-permission android:name="android.permission.SEND_SMS"/> 
<uses-permission android:name="android.permission.RECEIVE_SMS"/> 
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" /> 


<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:roundIcon="@mipmap/ic_launcher_round" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme"> 
    <activity android:name=".MainActivity"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 

    <receiver 
     android:name=".MyReceiver" 
     android:enabled="true" 
     android:exported="true"> 
     <intent-filter> 
      <action android:name="android.provider.Telephony.SMS_RECEIVED"/> 

     </intent-filter> 
    </receiver> 
</application> 

`

Answer 1

撒施此操作在10噸

DATA_SMS_RECEIVED_ACTION 

進一步的參考閱讀以下鏈接

https://developer.android.com/reference/android/provider/Telephony.Sms.Intents.html