本文实例为大家分享了Android使用广播发送消息的具体代码，供大家参考，具体内容如下
1.activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<EditText
android:id="@+id/edit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入要发送的内容" />
<Button
android:id="@+id/send"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="发送"/>
</LinearLayout>2.MainActivity
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private EditText edit;
private Button send;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//输入框id
edit = (EditText) findViewById(R.id.edit);
//按钮id
send = (Button) findViewById(R.id.send);
//点击按钮发送广播
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//获取输入的文本
String content=edit.getText().toString();
Intent intent = new Intent();
//包名
intent.setAction("xx.xx.xx");
intent.putExtra("msg", content);
sendBroadcast(intent);
}
});
}
}3.创建广播MyReceiver
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//跳转新的页面
//Intent i = new Intent(context, MainActivity2.class);
//i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//context.startActivity(i);
//获取广播内容
String content=intent.getStringExtra("msg");
Toast.makeText(context, "广播接受者:"+content, Toast.LENGTH_SHORT).show();
}
}清单文件中记得注册广播
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.xxx.xxx">
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18"
tools:ignore="GradleOverrides,OldTargetApi" />
<application
...
/>
<receiver android:name=".MyReceiver"
android:permission="TODO"
tools:ignore="ExportedReceiver">
<intent-filter >
<action android:name="com.xxx.xxx"/>
</intent-filter>
</receiver>
...
</application>
</manifest>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
