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Question

在网上下了一个关于gallery的源码，能运行，当我把代码复制到我新建的项目中时运行就崩溃，代码全部一样，不知道为什么。

Answer 1

package com.example.tab;import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Gallery.LayoutParams;
import android.widget.ViewSwitcher.ViewFactory;public class ImageSwitcherDemo extends Activity implements
OnItemSelectedListener, ViewFactory {
private ImageSwitcher is;
private Gallery gallery; private Integer[] mThumbIds = { R.drawable.b, R.drawable.c,
R.drawable.d, R.drawable.f, R.drawable.g,
}; private Integer[] mImageIds = { R.drawable.b, R.drawable.c,
R.drawable.d, R.drawable.f, R.drawable.g, }; /*
 * (non-Javadoc)
 * 
 * @see android.app.Activity#onCreate(android.os.Bundle)
 */
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_gallery); is = (ImageSwitcher) findViewById(R.id.imageSwitcher1);
is.setFactory(this); is.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
is.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out)); gallery = (Gallery) findViewById(R.id.gallery); gallery.setAdapter(new ImageAdapter(this));
gallery.setOnItemSelectedListener(this);
} @Override
public View makeView() {
ImageView i = new ImageView(this);
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
return i;
} public class ImageAdapter extends BaseAdapter {
public ImageAdapter(Context c) {
mContext = c;
} public int getCount() {
return mThumbIds.length;
} public Object getItem(int position) {
return position;
} public long getItemId(int position) {
return position;
} public View getView(int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext); i.setImageResource(mThumbIds[position]);
i.setAdjustViewBounds(true);
i.setLayoutParams(new Gallery.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
i.setBackgroundResource(R.drawable.e);
return i;
} private Context mContext; } @Override
public void onItemSelected(AdapterView<?> parent, View view, int position,
long id) {
is.setImageResource(mImageIds[position]); } @Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub }}

Answer 2

看到2楼的表情想起一句话，有什么不开心的说出来大家开心开心。。发你崩溃的log

Answer 3

logcat没有吗，打印出来的错误信息

Answer 4

04-16 07:17:52.913: D/gralloc_goldfish(2630): Emulator without GPU emulation detected.
04-16 07:17:55.123: D/AndroidRuntime(2630): Shutting down VM
04-16 07:17:55.123: W/dalvikvm(2630): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-16 07:17:55.143: E/AndroidRuntime(2630): FATAL EXCEPTION: main
04-16 07:17:55.143: E/AndroidRuntime(2630): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.tab/com.example.tab.MyGallery}; have you declared this activity in your AndroidManifest.xml?
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1618)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Activity.startActivityForResult(Activity.java:3370)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Activity.startActivityForResult(Activity.java:3331)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Activity.startActivity(Activity.java:3566)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.Activity.startActivity(Activity.java:3534)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at com.example.tab.main.onClick(main.java:40)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.view.View.performClick(View.java:4204)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.view.View$PerformClick.run(View.java:17355)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.os.Handler.handleCallback(Handler.java:725)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.os.Looper.loop(Looper.java:137)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-16 07:17:55.143: E/AndroidRuntime(2630):  at dalvik.system.NativeStart.main(Native Method)
04-16 07:20:15.293: D/gralloc_goldfish(2683): Emulator without GPU emulation detected.
04-16 07:20:17.873: D/AndroidRuntime(2683): Shutting down VM
04-16 07:20:17.873: W/dalvikvm(2683): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-16 07:20:17.893: E/AndroidRuntime(2683): FATAL EXCEPTION: main
04-16 07:20:17.893: E/AndroidRuntime(2683): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.tab/com.example.tab.MyGallery}; have you declared this activity in your AndroidManifest.xml?
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1618)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Activity.startActivityForResult(Activity.java:3370)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Activity.startActivityForResult(Activity.java:3331)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Activity.startActivity(Activity.java:3566)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.Activity.startActivity(Activity.java:3534)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at com.example.tab.main.onClick(main.java:40)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.view.View.performClick(View.java:4204)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.view.View$PerformClick.run(View.java:17355)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.os.Handler.handleCallback(Handler.java:725)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.os.Looper.loop(Looper.java:137)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-16 07:20:17.893: E/AndroidRuntime(2683):  at dalvik.system.NativeStart.main(Native Method)
04-16 07:20:19.913: I/Process(2683): Sending signal. PID: 2683 SIG: 9
04-16 07:21:01.294: E/Trace(2724): error opening trace file: No such file or directory (2)
04-16 07:21:02.193: D/gralloc_goldfish(2724): Emulator without GPU emulation detected.
04-16 07:21:11.303: D/AndroidRuntime(2724): Shutting down VM
04-16 07:21:11.303: W/dalvikvm(2724): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-16 07:21:11.323: E/AndroidRuntime(2724): FATAL EXCEPTION: main
04-16 07:21:11.323: E/AndroidRuntime(2724): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.tab/com.example.tab.MyGallery}; have you declared this activity in your AndroidManifest.xml?
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1618)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Activity.startActivityForResult(Activity.java:3370)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Activity.startActivityForResult(Activity.java:3331)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Activity.startActivity(Activity.java:3566)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.Activity.startActivity(Activity.java:3534)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at com.example.tab.main.onClick(main.java:40)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.view.View.performClick(View.java:4204)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.view.View$PerformClick.run(View.java:17355)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.os.Handler.handleCallback(Handler.java:725)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.os.Looper.loop(Looper.java:137)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-16 07:21:11.323: E/AndroidRuntime(2724):  at dalvik.system.NativeStart.main(Native Method)
04-16 07:23:55.023: E/Trace(2790): error opening trace file: No such file or directory (2)
04-16 07:23:56.323: D/gralloc_goldfish(2790): Emulator without GPU emulation detected.
04-16 07:24:01.305: D/AndroidRuntime(2790): Shutting down VM
04-16 07:24:01.305: W/dalvikvm(2790): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-16 07:24:01.333: E/AndroidRuntime(2790): FATAL EXCEPTION: main
04-16 07:24:01.333: E/AndroidRuntime(2790): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.tab/com.example.tab.ImageSwitcherDemo}; have you declared this activity in your AndroidManifest.xml?
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1618)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Activity.startActivityForResult(Activity.java:3370)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Activity.startActivityForResult(Activity.java:3331)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Activity.startActivity(Activity.java:3566)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.Activity.startActivity(Activity.java:3534)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at com.example.tab.main.onClick(main.java:40)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.view.View.performClick(View.java:4204)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.view.View$PerformClick.run(View.java:17355)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.os.Handler.handleCallback(Handler.java:725)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.os.Looper.loop(Looper.java:137)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 07:24:01.333: E/AndroidRuntime(2790):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:5

Answer 5

ActivityNotFoundException: Unable to find explicit activity class {com.example.tab/com.example.tab.MyGallery}; have you declared this activity in your AndroidManifest.xml?

Answer 6

manifest里配置activity啊亲！！！

Answer 7

不好意思，这个是最新的，上面的那个有的是其他的我没有清除
04-16 07:40:01.053: D/AndroidRuntime(2967): Shutting down VM
04-16 07:40:01.053: W/dalvikvm(2967): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-16 07:40:01.103: E/AndroidRuntime(2967): FATAL EXCEPTION: main
04-16 07:40:01.103: E/AndroidRuntime(2967): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.gallery/com.example.gallery.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.gallery.MainActivity" on path: /data/app/com.example.gallery-2.apk
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.os.Looper.loop(Looper.java:137)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at dalvik.system.NativeStart.main(Native Method)
04-16 07:40:01.103: E/AndroidRuntime(2967): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.gallery.MainActivity" on path: /data/app/com.example.gallery-2.apk
04-16 07:40:01.103: E/AndroidRuntime(2967):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
04-16 07:40:01.103: E/AndroidRuntime(2967):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
04-16 07:40:01.103: E/AndroidRuntime(2967):  ... 11 more

Answer 8

 Didn't find class "com.example.gallery.MainActivity"说的很清楚了，没找到这个类啊

Answer 9

16 07:40:01.103: E/AndroidRuntime(2967): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.gallery.MainActivity" on path: /data/app/com.example.gallery-2.apk

Answer 10

你那个估计应该可能也许大概差不多是类名写错了，mainactivity那个，找找，改成自己的

Answer 11

嗯，我新建一个，光复制代码看看，不复制文件，就不要再xml里面配了，看看行不行

Answer 12

高手，还是不行，哎，我无语了。
04-16 08:03:21.544: E/AndroidRuntime(3259): FATAL EXCEPTION: main
04-16 08:03:21.544: E/AndroidRuntime(3259): java.lang.NullPointerException
这个空指针异常是怎么回事呀

Answer 13

04-16 08:12:26.733: E/AndroidRuntime(3392): FATAL EXCEPTION: main
04-16 08:12:26.733: E/AndroidRuntime(3392): java.lang.OutOfMemoryError
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:502)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:355)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:785)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.content.res.Resources.loadDrawable(Resources.java:1965)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.content.res.Resources.getDrawable(Resources.java:660)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.ImageView.resolveUri(ImageView.java:616)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.ImageView.setImageResource(ImageView.java:349)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at com.example.gallerytest.ImageSwitcherDemo$ImageAdapter.getView(ImageSwitcherDemo.java:88)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.Gallery.makeAndAddView(Gallery.java:865)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.Gallery.fillToGalleryRightLtr(Gallery.java:819)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.Gallery.fillToGalleryRight(Gallery.java:763)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.Gallery.layout(Gallery.java:672)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.Gallery.onLayout(Gallery.java:357)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.View.layout(View.java:14008)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewGroup.layout(ViewGroup.java:4373)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.View.layout(View.java:14008)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewGroup.layout(ViewGroup.java:4373)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.View.layout(View.java:14008)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewGroup.layout(ViewGroup.java:4373)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.View.layout(View.java:14008)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewGroup.layout(ViewGroup.java:4373)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.View.layout(View.java:14008)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewGroup.layout(ViewGroup.java:4373)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1892)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1711)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.Choreographer.doCallbacks(Choreographer.java:562)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.Choreographer.doFrame(Choreographer.java:532)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.os.Handler.handleCallback(Handler.java:725)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.os.Looper.loop(Looper.java:137)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at java.lang.reflect.Method.invokeNative(Native Method)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at java.lang.reflect.Method.invoke(Method.java:511)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-16 08:12:26.733: E/AndroidRuntime(3392):  at dalvik.system.NativeStart.main(Native Method)

Answer 14

04-16 08:12:26.733: E/AndroidRuntime(3392):  at com.example.gallerytest.ImageSwitcherDemo$ImageAdapter.getView(ImageSwitcherDemo.java:88错误显示内存不足...如果是用模拟器运行的   分配AVD的内存搞大点试试

Answer 15

mainiftest.xml中没有配置activity吧， 把avd的内存分配大一点，运行时注意是否少JAR包，或是.classpath是否配置正确

Answer 16

我是最简单的一个工程就一个布局文件再加一个java文件，没其他的了，这样在xml中也不要在注册类了吧

Answer 17

mainiftest.xml 肯定没有配置正确

Answer 18

大哥问一个简单的问题，刚发现的。final Button bn=(Button)findViewById(R.id.button3);
final Builder builder=new AlertDialog.Builder(this);
final TextView t=(TextView)findViewById(R.id.editText1);
bn.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(t.getText().toString()=="nihao")
{
builder.setTitle("自定义的提示框");
builder.setMessage("简单的提示框！");
    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { 
           @Override
           public void onClick(DialogInterface dialog, int which) { 
               
           }  });
builder.create().show();
}
}
});
当我输入nihao不进入该方法；
但是把==改成equals就可以了，想知道为什么，帮个忙