安卓，通过本地应用分享到微信、facebook等

别的不说了，直接上代码。

支持分享到微信、微博、facebook、twitter

package com.example.shareSample;

import java.util.List;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
	protected void onCreate(Bundle paramBundle) {
		super.onCreate(paramBundle);
		setContentView(R.layout.main);
		((Button) findViewById(R.id.toFacebookButton))
				.setOnClickListener(new View.OnClickListener() {
					public void onClick(View paramAnonymousView) {
						Toast.makeText(
								MainActivity.this.getApplicationContext(),
								"waiting to share to facebook",
								Toast.LENGTH_SHORT).show();
						MainActivity.this.shareToFacebook();
					}
				});
		((Button) findViewById(R.id.toTwitterButton))
				.setOnClickListener(new View.OnClickListener() {
					public void onClick(View paramAnonymousView) {
						Toast.makeText(
								MainActivity.this.getApplicationContext(),
								"waiting to share to twitter",
								Toast.LENGTH_SHORT).show();
						MainActivity.this.shareToTwitter();
					}
				});
		((Button) findViewById(R.id.toWeixinButton))
				.setOnClickListener(new View.OnClickListener() {
					public void onClick(View paramAnonymousView) {
						Toast.makeText(
								MainActivity.this.getApplicationContext(),
								"waiting to share to weixin",
								Toast.LENGTH_SHORT).show();
						MainActivity.this.shareToWeixin();
					}
				});
		((Button) findViewById(R.id.toWeiboButton))
				.setOnClickListener(new View.OnClickListener() {
					public void onClick(View paramAnonymousView) {
						Toast.makeText(
								MainActivity.this.getApplicationContext(),
								"waiting to share to weibo", Toast.LENGTH_SHORT)
								.show();
						MainActivity.this.shareToWeibo();
					}
				});
	}

	private void shareToFacebook() {
		shareToByType("facebook");
	}

	private void shareToTwitter() {
		shareToByType("twitter");
	}

	private void shareToWeibo() {
		shareToByType("weibo");
	}

	private void shareToWeixin() {
		Intent localIntent = new Intent();
		localIntent.setComponent(new ComponentName("com.tencent.mm",
				"com.tencent.mm.ui.tools.ShareImgUI"));
		localIntent.setAction("android.intent.action.SEND");
		localIntent.setType("image/*");
		localIntent.putExtra("android.intent.extra.TEXT", "测试消息");
		startActivity(localIntent);
	}

	private void shareToByType(String type) {
		boolean found = false;
		Intent share = new Intent(android.content.Intent.ACTION_SEND);
		share.setType("image/jpeg");
		List<ResolveInfo> resInfo = getPackageManager().queryIntentActivities(
				share, 0);
		if (!resInfo.isEmpty()) {
			for (ResolveInfo info : resInfo) {
				if (info.activityInfo.packageName.toLowerCase().contains(type)
						|| info.activityInfo.name.toLowerCase().contains(type)) {
					share.putExtra(Intent.EXTRA_SUBJECT, "subject");
					share.putExtra(Intent.EXTRA_TEXT, "your text");
					share.setPackage(info.activityInfo.packageName);
					found = true;
					break;
				}
			}
			if (!found)
				return;

			startActivity(Intent.createChooser(share, "Select"));
		}
	}

}