Android自带的分享功能案例

MainActivity的代码

package com.hpsvse.weiboshare;
import java.io.File;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;


public class MainActivity extends Activity {
private Button btn1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
private void initView() {
// TODO Auto-generated method stub
btn1=(Button) findViewById(R.id.button1);
btn1.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
shareMsg(MainActivity.this,null,null,null,null);

}
});
}
public static void shareMsg(Context context, String activityTitle, String msgTitle, String msgText,
String imgPath) {
Intent intent = new Intent(Intent.ACTION_SEND);
if (imgPath == null || imgPath.equals("")) {
intent.setType("text/plain"); // 纯文本
} else {
File f = new File(imgPath);
if (f != null && f.exists() && f.isFile()) {
intent.setType("image/png");
Uri u = Uri.fromFile(f);
intent.putExtra(Intent.EXTRA_STREAM, u);
}
}
intent.putExtra(Intent.EXTRA_SUBJECT, msgTitle);
intent.putExtra(Intent.EXTRA_TEXT, msgText);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(Intent.createChooser(intent, activityTitle));
}
}

activity_main.xml 代码

<LinearLayout 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"
    tools:context=".MainActivity"
    android:orientation="vertical" >
    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="分享" />

</LinearLayout>

其它的文件都不变

值得注意的是。你分享的内容的多少取决你的手机有多少社交软件，