【无标题】android号码

MainActivity.java:

public class MainActivity extends AppCompatActivity {
private EditText et;
private Button btn;
SharedPreferences sp;

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

    et = findViewById(R.id.et);
    btn = findViewById(R.id.button);

    sp = getSharedPreferences("mingdan", MODE_PRIVATE);


    if (ContextCompat.checkSelfPermission(this, Manifest.permission.PROCESS_OUTGOING_CALLS)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.PROCESS_OUTGOING_CALLS},1
        );
    }else{
    }

    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String num = et.getText().toString().trim();
            SharedPreferences.Editor editor = sp.edit();
            editor.putString("number",num);
            editor.commit();
            Toast.makeText(MainActivity.this,"已设置拦截",Toast.LENGTH_SHORT).show();


        }
    });

}

}

MyReceiver.java:

public class MainActivity extends AppCompatActivity {
private EditText et;
private Button btn;
SharedPreferences sp;

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

    et = findViewById(R.id.et);
    btn = findViewById(R.id.button);

    sp = getSharedPreferences("mingdan", MODE_PRIVATE);


    if (ContextCompat.checkSelfPermission(this, Manifest.permission.PROCESS_OUTGOING_CALLS)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.PROCESS_OUTGOING_CALLS},1
        );
    }else{
    }

    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String num = et.getText().toString().trim();
            SharedPreferences.Editor editor = sp.edit();
            editor.putString("number",num);
            editor.commit();
            Toast.makeText(MainActivity.this,"已设置拦截",Toast.LENGTH_SHORT).show();


        }
    });

}

}

activity_main

<?xml version="1.0" encoding="utf-8"?>

<EditText
    android:id="@+id/et"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:ems="10"
    android:inputType="textPersonName" />

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="设置拦截" />

AndroidManifest

<?xml version="1.0" encoding="utf-8"?>

<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/Theme.Rhj220">
    <receiver
        android:name=".MyReceiver"
        android:enabled="true"
        android:exported="true">
        <intent-filter android:priority="1000">
            <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
        </intent-filter>
    </receiver>

    <activity
        android:name=".MainActivity"
        android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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