Question

我正在尝试在onBackPressed评估我的应用

public void onBackPressed() {
        new AlertDialog.Builder(ChooseMenu.this)
        .setMessage("Rate My Application")
        .setCancelable(true)
        .setPositiveButton("Rate it",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog,
                            int id) {
                        mcontext.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + APP_PNAME)));

                    }
                }).setNegativeButton("Later", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                        finish();
                    }
                }).show();

LogCat：

11-23 23:22:09.476: E/AndroidRuntime(594): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=market://details?id=com.moblication5.india.homeeelectriccalculator }
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1409)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.app.Activity.startActivityForResult(Activity.java:2827)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.app.Activity.startActivity(Activity.java:2933)
11-23 23:22:09.476: E/AndroidRuntime(594):  at com.moblication5.india.homeeelectriccalculator.ChooseMenu$6.onClick(ChooseMenu.java:167)
11-23 23:22:09.476: E/AndroidRuntime(594):  at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:159)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.os.Handler.dispatchMessage(Handler.java:99)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.os.Looper.loop(Looper.java:123)
11-23 23:22:09.476: E/AndroidRuntime(594):  at android.app.ActivityThread.main(ActivityThread.java:3683)
11-23 23:22:09.476: E/AndroidRuntime(594):  at java.lang.reflect.Method.invokeNative(Native Method)
11-23 23:22:09.476: E/AndroidRuntime(594):  at java.lang.reflect.Method.invoke(Method.java:507)
11-23 23:22:09.476: E/AndroidRuntime(594):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-23 23:22:09.476: E/AndroidRuntime(594):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-23 23:22:09.476: E/AndroidRuntime(594):  at dalvik.system.NativeStart.main(Native Method)

Answer 1

更改

mcontext.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + APP_PNAME)));

到

mcontext.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/details?id=" + APP_PNAME)));

并非所有手机都安装了Google Play，并知道如何处理market://网址。

其他一些解决方案： "no activity found to handle intent" Not all phones have Android Market installed

Answer 2

我猜你错过了初始化上下文

在onCreate

中执行此操作

mcontext = this;

Answer 3

公开定义mcontext，并在onCreate中对其进行初始化。例如：

public Context mcontext;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mcontext = this;
}

然后改变这个：

mcontext.startActivity(new Intent(Intent.ACTION_VIEW, 
                       Uri.parse("market://details?id=" + APP_PNAME)));

对此：

mcontext.startActivity(new Intent(Intent.ACTION_VIEW, 
          Uri.parse("https://play.google.com/store/apps/details?id=" + APP_NAME)));

其中APP_NAME是您应用的包名称。

如何在OnBackPressed方法中评价我的应用程序

3 个答案: