郑州app开发android无序广播发送与接收实例。思路如下,需要建立两个工程。其中一个是发送无序广播,另外一个是接收广播。
发送广播的java代码
package cn.xhhkj.cyd;
import androidx.appcompat.app.AppCompatActivity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private Button btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn=findViewById(R.id.btn);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent();
intent.setAction("cn.xhhkj.broadcast");
intent.putExtra("key","hello");
sendBroadcast(intent);
}
});
}
}
接收无序广播的java代码
package cn.xhhkj.xhhkjtest;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class Mybroadcast extends BroadcastReceiver {
private static final String TAG = "MyReceiver";
@Override
public void onReceive(Context context, Intent intent) {
Log.d(TAG,"接收到了"+intent.getStringExtra("key"));
}
}
最后调试成功的代码
2020-02-18 13:04:38.669 2876-2876/cn.xhhkj.xhhkjtest D/MyReceiver: 接收到了hello