Android(安卓)调用已安装市场，去应用市场评分

最近需求要实现这样一个功能，在某个界面停留40多秒后，弹出一个Dialog，让用户去市场评分，或反馈意见。

/** * Created by Administrator on 2016/2/22. *

* 用于提示用户评分工具类 */ public class GradeUtil { private Timer timer; private Context mContext; private Handler handler = new Handler() { public void handleMessage(android.os.Message msg) { if (null != mContext) { LayoutInflater mInflater = LayoutInflater.from(mContext); View view = mInflater.inflate(R.layout.m_user_rating_dialog, null, false); Dialog dialog = DialogUtil.showUserRatingDialog(mContext, view, null); //弹出Dialog MyClickListener myClickListener = new MyClickListener(dialog); view.findViewById(R.id.iv_good_reputation).setOnClickListener(myClickListener); view.findViewById(R.id.iv_suggestion).setOnClickListener(myClickListener); view.findViewById(R.id.tv_reject).setOnClickListener(myClickListener); SharedPreferencesUtils.setParam(mContext, Constants.VERSION_KEY, BuildConfig.VERSION_CODE); //如果弹出了Dialog,则修改SP版本为当前版本 stop(); } } }; public void start(final Context context) { mContext = context; if (isShowRatingDialog()) { LogUtil.d("GradeUtil", "mGradeUtil.start()"); timer = new Timer(); timer.schedule(new MyTimerTask(handler), 45000); //延迟45秒执行 } } /** * 计时器 */ public static class MyTimerTask extends TimerTask { Handler handler; MyTimerTask(Handler handler){ this.handler = handler; } @Override public void run() { handler.obtainMessage().sendToTarget(); } } public void stop() { LogUtil.d("GradeUtil", "mGradeUtil.stop()"); if (null != timer) { timer.purge(); timer.cancel(); timer = null; } } static class MyClickListener implements View.OnClickListener { Dialog mDialog; MyClickListener(Dialog dialog){ mDialog = dialog; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.iv_good_reputation: try { Uri uri = Uri.parse("market://details?id=" + v.getContext().getPackageName()); Intent intent = new Intent(Intent.ACTION_VIEW, uri); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); v.getContext().startActivity(intent); mDialog.cancel(); } catch (Exception e) { e.printStackTrace(); ToastUtil.showShort(v.getContext(), "没找到应用市场！"); mDialog.cancel(); } break; case R.id.iv_suggestion: FeedbackAgent agent = new FeedbackAgent(v.getContext()); agent.startFeedbackActivity(); mDialog.cancel(); break; case R.id.tv_reject: mDialog.cancel(); break; } } } private boolean isShowRatingDialog() { int currentVersion = BuildConfig.VERSION_CODE; int lastVersion = (int) SharedPreferencesUtils.getParam(mContext, Constants.VERSION_KEY, 0); //用SP 记录版本号 if (currentVersion > lastVersion ) { //如果当前版本大于上次版本，该版本属于第一次启动 return true; } else { return false; } } }

实现方法如下，在onCreate中 mGradeUtil = new GradeUtil(); new出该工具类实例
在onResume()中调用 mGradeUtil.start(NewHomeTeamMainActivity.this); 开始方法在onStop() 中调用 mGradeUtil.stop();

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