Question

我正在开发一个Android应用程序，问题是所有活动在模拟器上运行正常，但其中一个活动没有加载到平板电脑上（运行4.4 kitkat）并且停止了应用程序，MainPage.Class无效。

的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.smarttrack"
    android:versionCode="1"
    android:versionName="1.0" > 

     <uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
     <uses-permission android:name="android.permission.READ_SMS" />
     <uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/app_icon"
        android:label="@string/app_name"
        android:theme="@style/ActionBarTheme" >


        <activity
            android:name="com.smarttrack.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
          <activity
            android:name="com.smarttrack.LoginActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
          <activity
            android:name="com.smarttrack.MainPage"
            android:label="@string/app_name" 
            android:theme="@style/ActionBarTheme"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
             <activity
            android:name="com.smarttrack.AskActivity"
            android:label="@string/app_name" 
            android:theme="@style/ActionBarTheme"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
             <activity
            android:name="com.smarttrack.AskLocation"
            android:label="@string/app_name" 
            android:theme="@style/ActionBarTheme"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
             <activity
            android:name="com.smarttrack.Options"
            android:label="@string/app_name" 
            android:theme="@style/ActionBarTheme"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
             <activity
            android:name="com.smarttrack.Settings"
            android:label="@string/app_name" 
            android:theme="@style/ActionBarTheme"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

              <receiver android:name="com.smarttrack.MsgBroadcast">   
            <intent-filter>
                <action android:name="android.provider.Telephony.SMS_RECEIVED" />
            </intent-filter>
        </receiver>


    </application>

</manifest>

MainPage.Class

package com.smarttrack;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class MainPage extends Activity implements OnClickListener{

    ImageView img;
    TextView statusText;
    String status ;
    Button askActivity;
    Button askLocation;
    Button addActivity;
    Button optionsMenu;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_page);
        initVars();
        img.setOnClickListener(this);
        askActivity.setOnClickListener(this);
        askLocation.setOnClickListener(this);
        addActivity.setOnClickListener(this);
        optionsMenu.setOnClickListener(this);

    }
    private void initVars() {
        // TODO Auto-generated method stub
        img = (ImageView)findViewById(R.id.switchingImage);
        statusText = (TextView)findViewById(R.id.appStatus);
        img.setImageResource(R.drawable.switch_off);
        status = "active";

        askActivity = (Button) findViewById(R.id.AskActivity);
        askLocation = (Button) findViewById(R.id.btAskLocation);
        addActivity = (Button) findViewById(R.id.addActivity);
        optionsMenu = (Button) findViewById(R.id.optionsButton);

    }
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        int id = v.getId();

        switch(id){
        case R.id.switchingImage:
            Runnable swap = new Runnable() {

                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    if(status == "active"){
                        img.setImageResource(R.drawable.switch_off);
                        statusText.setText("Status = Running");
                        status = "unactive";
                    }else {
                        img.setImageResource(R.drawable.switch_on);
                        statusText.setText("Status = Stopped");
                        status = "active";
                    }
                }

            };
            img.postDelayed(swap, 100);
            break;

        case R.id.AskActivity:
            Intent  i = new Intent(this,AskActivity.class);
            startActivity(i);
            break;
        case R.id.btAskLocation:
            Intent loc = new Intent(this,AskLocation.class);
            startActivity(loc);
            break;
        case R.id.addActivity:

            break;
        case R.id.optionsButton:
            Intent opt = new Intent(this,Options.class);
            startActivity(opt);
            break;
        }
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu items for use in the action bar
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.action_bar_item, menu);
        return super.onCreateOptionsMenu(menu);
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle presses on the action bar items
        switch (item.getItemId()) {
        case R.id.ActionBarHelp:
            AlertDialog.Builder bldr = new AlertDialog.Builder(this);
            bldr.setTitle("SmartTrack").setMessage("Cool application");

            Dialog dlg = bldr.create();
            dlg.show();

            return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }




}

Answer 1

在您的清单xml中，您的目标sdk为18，但4.4可以在19

上运行

活动在模拟器上工作但不在平板电脑上加载

1 个答案: