返回微信简单调用

/**
 * 启动微信
 */
public static void launchWechat(Context context) {
    Intent intent = new Intent();
    ComponentName cmp = new ComponentName("com.tencent.mm", "com.tencent.mm.ui.LauncherUI");
    intent.setAction(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
    intent.setComponent(cmp);
    context.startActivity(intent);

}