2010-04-16 163 views
0

我所要做的只是打開一個非常簡單的應用程序,該應用程序不應該在textView上方顯示imageView。該應用程序工作正常,直到我添加了imageView,所以我假設我的問題與此有關。Android應用程序無法啓動

下面是代碼:

package com.isi.sa; 

import android.app.Activity; 
import android.os.Bundle; 

public class SimpleAssessment extends Activity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle icicle) { 
     super.onCreate(icicle); 
     setContentView(R.layout.main); 
    } 
} 

這裏是我的佈局 - > main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 

    <ImageView 
     android:layout_width="fill_parent" 
     android:src="@drawable/isi_logo"/> 

    <TextView 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:text="@string/hello" 
     android:background="@color/white" 
     android:textColor="@color/black"/> 
</LinearLayout> 

當我嘗試,並通過模擬器在Eclipse中運行應用程序的仿真器給了我以下錯誤:

The application Application Name (process.com.isi.sa) has stopped unexpectedly. Please try again. 

Eclipse中的控制檯日誌顯示以下消息:

[2010-04-16 11:08:44 - SimpleAssessment] ------------------------------ 
[2010-04-16 11:08:44 - SimpleAssessment] Android Launch! 
[2010-04-16 11:08:44 - SimpleAssessment] adb is running normally. 
[2010-04-16 11:08:44 - SimpleAssessment] Performing com.isi.sa.SimpleAssessment activity launch 
[2010-04-16 11:08:44 - SimpleAssessment] Automatic Target Mode: launching new emulator with compatible AVD 'my_avd' 
[2010-04-16 11:08:44 - SimpleAssessment] Launching a new emulator with Virtual Device 'my_avd' 
[2010-04-16 11:08:47 - SimpleAssessment] New emulator found: emulator-5554 
[2010-04-16 11:08:47 - SimpleAssessment] Waiting for HOME ('android.process.acore') to be launched... 
[2010-04-16 11:09:31 - SimpleAssessment] WARNING: Application does not specify an API level requirement! 
[2010-04-16 11:09:31 - SimpleAssessment] Device API version is 3 (Android 1.5) 
[2010-04-16 11:09:31 - SimpleAssessment] HOME is up on device 'emulator-5554' 
[2010-04-16 11:09:31 - SimpleAssessment] Uploading SimpleAssessment.apk onto device 'emulator-5554' 
[2010-04-16 11:09:31 - SimpleAssessment] Installing SimpleAssessment.apk... 
[2010-04-16 11:10:04 - SimpleAssessment] Success! 
[2010-04-16 11:10:04 - SimpleAssessment] Starting activity com.isi.sa.SimpleAssessment on device 
[2010-04-16 11:10:09 - SimpleAssessment] ActivityManager: Starting: Intent { action=android.intent.action.MAIN categories={android.intent.category.LAUNCHER} comp={com.isi.sa/com.isi.sa.SimpleAssessment} } 

在此先感謝您的幫助!

+0

控制檯日誌通常不如DDMS的輸出有用,以備將來參考。 – jqpubliq 2010-04-16 15:24:20

回答

0

ImageView缺少layout_height,您不能將它們都視爲「fill_parent」。您應該使用RelativeLayout或使用絕對高度/寬度。

+1

第一部分是問題。每個元素都需要layout_height和佈局寬度。將ImageView的layout_height設置爲「wrap_content」看起來像是打算的。 – jqpubliq 2010-04-16 15:28:36

+0

這是我的問題。謝謝您的幫助。 – Ryan 2010-04-16 16:22:31