Android Studio“运行应用程序”对话框不会出现在一个项目中，但会出现在另一个项目中

我正在用 Android Studio 制作一个非常简单非常愚蠢的应用程序来了解如何保存关键首选项，但我遇到了一个奇怪的障碍。我会尽力提供尽可能多的信息，因为可能很难重现这个错误，但老实说，我正在运行的两个应用程序都是超级基础在那里没有编译错误.

眼镜： 没有模拟器，我正在运行三星 Galaxy 平板电脑。 Windows 7、Android Studio 1.2、Gradle 2.2.1。

在问题标题中，我的意思是我有一个名为Kitty（几乎是你好世界和一个按钮）。我单击“运行”->“运行应用程序”->（打开对话框）->“确定”->很快应用程序就会在我的平板电脑上启动。

^^^这是我想看到的美丽屏幕共享偏好，但仅在kitty.

现在我开始了另一个项目叫做共享首选项（要点：两个复选框询问你“你喜欢巧克力吗”和“你喜欢路易吉吗”，你不勾选一个或两者都勾选，然后按保存。下面的两个文本视图将更新以表明你是否喜欢这些东西，甚至稍后如果你重新打开应用程序的文本视图会记住巧克力路易吉的偏好）。它只是一个 main_activity。

我认为我没有更改两者之间的任何设置或项目首选项，也没有给我一个错误。 MainActivity.java过时的原件请参阅编辑:

package gaga.sharedpreferences;

import android.content.SharedPreferences;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CheckedTextView;
import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

    public final class setup extends MainActivity {
        public void setup () {
            //Nothing to see here!
        }

        // Define the File of Prefs; created if nonexistent
        public static final String PREFS_NAME = "MyPrefsFile";

        // Start up
        @Override
        public void onCreate(Bundle state) {
            super.onCreate(state);

            // Restore preferences on Startup
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            boolean Chocolate = settings.getBoolean("checkChocolate", false);
            boolean Luigi = settings.getBoolean("checkLuigi", false);
            // Function set to Whatever
            // setSilent(silent);
            /* Note:
            * CheckedTextView and CheckBox::isChecked()
            * CheckBox::setChecked()
            * */
            CheckBox checkHandleChocolate = (CheckBox) findViewById(R.id.checkChocolate);
            CheckBox checkHandleLuigi = (CheckBox) findViewById(R.id.checkLuigi);

            // What was the preference? On Start set it to the bool it left off in
            checkHandleChocolate.setChecked(Chocolate);
            checkHandleLuigi.setChecked(Luigi);

            // Change report text on Start
            TextView buttonHandleChocolate = (TextView) findViewById(R.id.chocolate);
            TextView buttonHandleLuigi = (TextView) findViewById(R.id.luigi);

            if(Chocolate)
                buttonHandleChocolate.setText("I do prefer Chocolate");
            else
                buttonHandleChocolate.setText("I do not prefer Chocolate");
            if(Luigi)
                buttonHandleLuigi.setText("I do prefer Luigi");
            else
                buttonHandleLuigi.setText("I do not prefer Luigi");

        }

        public void saveChocolate(Boolean c) {
            // All objects from android.context.Context
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putBoolean("Chocolate", c);
            // Commit the edits
            editor.commit();
        }
        public void saveLuigi(Boolean l) {
            // All objects from android.context.Context
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putBoolean("Chocolate", l);
            // Commit the edits
            editor.commit();
        }
    }


    @Override
    protected void onStop(){
        super.onStop();
        // Objects are from android.context.Context
        //Normally I'd put the edit commits here, but that's not true
    }

    // Clicks on Done
    public void userDone (View view) {
        // View is which widget
        boolean checked = ((CheckBox) view).isChecked();

        // Which checkbox was clicked
        switch(view.getId()) {
            case R.id.checkChocolate:
                setup instance1 = new setup();
                instance1.saveChocolate(checked);
                // No break; continue along
            case R.id.checkLuigi:
                setup instance2 = new setup();
                instance2.saveLuigi(checked);
                break;
        }
    }


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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

logcat的红色部分：

06-02 20:49:57.245  25557-25557/? I/SDP.PUB_CRYPTOD﹕ Starting
06-02 20:49:57.245  25557-25557/? I/SDP.PUB_CRYPTOD﹕ Socket created with fd:-1
06-02 20:49:57.245  25557-25557/? E/SDP.PUB_CRYPTOD﹕ Failed to open the netlink socket with error: Protocol not supported
06-02 20:49:57.245  25557-25557/? E/SDP.PUB_CRYPTOD﹕ Exiting
06-02 20:49:59.995    2866-3012/? V/AlarmManager﹕ waitForAlarm result :8
06-02 20:50:02.280  25633-25633/? I/SDP.PUB_CRYPTOD﹕ Starting
06-02 20:50:02.280  25633-25633/? I/SDP.PUB_CRYPTOD﹕ Socket created with fd:-1
06-02 20:50:02.280  25633-25633/? E/SDP.PUB_CRYPTOD﹕ Failed to open the netlink socket with error: Protocol not supported
06-02 20:50:02.280  25633-25633/? E/SDP.PUB_CRYPTOD﹕ Exiting

谢谢你的帮助。我在互联网上搜索时没有看到这个问题，所以它可能太菜鸟了。

编辑：用较大的 MainActivity 类中唯一的 onCreate 重写

package gaga.sharedpreferences;

import android.content.SharedPreferences;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CheckedTextView;
import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

    public final class setup extends MainActivity {
        public void setup () {
            //Nothing to see here!
        }

        // Define the File of Prefs; created if nonexistent
        public static final String PREFS_NAME = "MyPrefsFile";

        // Start up
        public void onCreateSubclass() {
            // super.onCreate(state);

            // Restore preferences on Startup
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            boolean Chocolate = settings.getBoolean("checkChocolate", false);
            boolean Luigi = settings.getBoolean("checkLuigi", false);
            // Function set to Whatever
            // setSilent(silent);
            /* Note:
            * CheckedTextView and CheckBox::isChecked()
            * CheckBox::setChecked()
            * */
            CheckBox checkHandleChocolate = (CheckBox) findViewById(R.id.checkChocolate);
            CheckBox checkHandleLuigi = (CheckBox) findViewById(R.id.checkLuigi);

            // What was the preference? On Start set it to the bool it left off in
            checkHandleChocolate.setChecked(Chocolate);
            checkHandleLuigi.setChecked(Luigi);

            // Change report text on Start
            TextView buttonHandleChocolate = (TextView) findViewById(R.id.chocolate);
            TextView buttonHandleLuigi = (TextView) findViewById(R.id.luigi);

            if(Chocolate)
                buttonHandleChocolate.setText("I do prefer Chocolate");
            else
                buttonHandleChocolate.setText("I do not prefer Chocolate");
            if(Luigi)
                buttonHandleLuigi.setText("I do prefer Luigi");
            else
                buttonHandleLuigi.setText("I do not prefer Luigi");

        }

        public void saveChocolate(Boolean c) {
            // All objects from android.context.Context
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putBoolean("Chocolate", c);
            // Commit the edits
            editor.commit();
        }
        public void saveLuigi(Boolean l) {
            // All objects from android.context.Context
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putBoolean("Chocolate", l);
            // Commit the edits
            editor.commit();
        }
    }


    @Override
    protected void onStop(){
        super.onStop();
        // Objects are from android.context.Context
        //Normally I'd put the edit commits here, but that's not true
    }

    // Clicks on Done
    public void userDone (View view) {
        // View is which widget
        boolean checked = ((CheckBox) view).isChecked();

        // Which checkbox was clicked
        switch(view.getId()) {
            case R.id.checkChocolate:
                setup instance1 = new setup();
                instance1.saveChocolate(checked);
                // No break; continue along
            case R.id.checkLuigi:
                setup instance2 = new setup();
                instance2.saveLuigi(checked);
                break;
        }
    }


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

        setup startInstance = new setup();
        startInstance.onCreateSubclass();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

在 Android Studio 中，您需要在项目中创建一个运行配置。

转到此链接以查看左侧运行图标

然后点击编辑配置，在窗口中配置如下：

并保存它，以进行测试，单击运行图标。