微信微博分享功能

import java.util.ArrayList;
import java.util.List;

import android.R;
import android.app.Activity;
import android.app.Dialog;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class ShareActivity extends Activity {

private Dialog mDialog;
private ListView mList;
private ShareAdapter mAdapter = new ShareAdapter();
private String[] packages = { "com.tencent.mm", "com.sina.weibo",
"com.tencent.WBlog", "com.netease.wb", "com.renren.mobile.android" };
private String[] actions = { "com.tencent.mm.ui.tools.ShareImgUI",
"com.sina.weibo.EditActivity",
"com.tencent.WBlog.intentproxy.TencentWeiboIntent",
"com.netease.wb.activity.SendBlogActivity",
"com.renren.mobile.android.publisher.InputPublisherActivity" };

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getShareApp();
}

public void onRightFunO(View view) {
if (mAdapter.getCount() > 1) {
showDialog();
} else {
share(null);
}
}

private void share(AppInfo app) {
try {
Intent intent = new Intent();
if (app != null && app.pkg != null) {
ComponentName comp = new ComponentName(app.pkg, app.action);
intent.setComponent(comp);
}
intent.setAction(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT, "分享");
intent.putExtra(Intent.EXTRA_TEXT, "快讯详情");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
} catch (Exception e) {
Toast.makeText(this, "没有可执行的应用", Toast.LENGTH_LONG).show();
}
}

private void getShareApp() {
Intent intent = new Intent(Intent.ACTION_SEND, null);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setType("text/plain");

PackageManager packageManager = this.getPackageManager();
List<ResolveInfo> mApps = packageManager.queryIntentActivities(intent,
PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
int count = packages.length;
List<AppInfo> data = new ArrayList<ShareActivity.AppInfo>();
for (ResolveInfo resolveInfo : mApps) {
for (int i = 0; i < count; i++) {
if (resolveInfo.activityInfo.packageName
.equalsIgnoreCase(packages[i])) {
AppInfo app = new AppInfo();
app.label = resolveInfo.loadLabel(packageManager)
.toString();
app.pkg = packages[i];
app.action = actions[i];
app.icon = resolveInfo.loadIcon(packageManager);
data.add(app);
}
}
}
AppInfo app = new AppInfo();
app.label = "更多";
app.icon = getResources().getDrawable(R.drawable.ic_more);
data.add(app);
mAdapter.setData(data);
}

private void showDialog() {
if (mDialog == null) {
mDialog = new Dialog(this, R.style.dialog);
View contentView = inflater.inflate(R.layout.filter_dropdown, null);

mList = (ListView) contentView.findViewById(R.id.filter_list);
mList.setItemsCanFocus(false);
mList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
TextView mTitleBarLabel = (TextView) contentView
.findViewById(R.id.title_bar_label);
mTitleBarLabel.setText("分享");
mDialog.setContentView(contentView);
mList.setAdapter(mAdapter);
}

mList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
mDialog.dismiss();
share((AppInfo) parent.getAdapter().getItem(position));
}
});
mDialog.show();
}

private class AppInfo {
public String label;
private String pkg;
public String action;
public Drawable icon;
}

private class ShareAdapter extends BaseAdapter {

private List<AppInfo> apps = new ArrayList<ShareActivity.AppInfo>();

public void setData(final List<ShareActivity.AppInfo> app) {
this.apps = app;
notifyDataSetChanged();
}

@Override
public int getCount() {
return apps.size();
}

@Override
public Object getItem(int position) {
return apps.get(position);
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.menu_item, null);
}
AppInfo app = apps.get(position);
ImageView img = (ImageView) convertView.findViewById(R.id.image1);
img.setImageDrawable(app.icon);
TextView text1 = (TextView) convertView.findViewById(R.id.text1);
text1.setText(app.label);

return convertView;
}
}
}