我正在尝试按下按钮执行动画..步骤如下 按钮点击..
但是我得到了内存异常......
当动画文件未添加到项目时,没有错误。但是,由于动画的加入存在问题。
我在这里使用3个类文件(home_screen,button_anime和home)
home_screen.java接收按钮点击信息,更改按钮图像并转移到button_anime类,动画文件在button_anime.java中启动,动画播放后,下一个布局显示在home.java
日志猫如下..
E/AndroidRuntime(1255): java.lang.OutOfMemoryError
E/AndroidRuntime(1255): at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
E/AndroidRuntime(1255): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587)
E/AndroidRuntime(1255): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422)
E/AndroidRuntime(1255): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
E/AndroidRuntime(1255): at android.content.res.Resources.loadDrawable(Resources.java:2110)
E/AndroidRuntime(1255): at android.content.res.Resources.getDrawable(Resources.java:700)
E/AndroidRuntime(1255): at android.graphics.drawable.AnimationDrawable.inflate(AnimationDrawable.java:282)
E/AndroidRuntime(1255): at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:937)
E/AndroidRuntime(1255): at android.graphics.drawable.Drawable.createFromXml(Drawable.java:877)
E/AndroidRuntime(1255): at android.content.res.Resources.loadDrawable(Resources.java:2092)
E/AndroidRuntime(1255): at android.content.res.Resources.getDrawable(Resources.java:700)
E/AndroidRuntime(1255): at android.view.View.setBackgroundResource(View.java:15303)
E/AndroidRuntime(1255): at com.quinoid.thomasinternational.Button_Anime.onCreate(Button_Anime.java:19)
E/AndroidRuntime(1255): at android.app.Activity.performCreate(Activity.java:5231)
E/AndroidRuntime(1255): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
E/AndroidRuntime(1255): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
E/AndroidRuntime(1255): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
E/AndroidRuntime(1255): at android.app.ActivityThread.access$800(ActivityThread.java:135)
E/AndroidRuntime(1255): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
E/AndroidRuntime(1255): at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(1255): at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(1255): at android.app.ActivityThread.main(ActivityThread.java:5017)
E/AndroidRuntime(1255): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(1255): at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime(1255): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
E/AndroidRuntime(1255): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
E/AndroidRuntime(1255): at dalvik.system.NativeStart.main(Native Method)
我的home_screen.java
home.setOnClickListener(new OnClickListener() { <-- error happens somewhere here
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Bitmap b = BitmapFactory.decodeResource(getResources(),R.drawable.home1);
Drawable d = new BitmapDrawable(getResources(),b);
home.setBackgroundDrawable(d); <-- this dose not work..
Intent myIntent = new Intent(Home_Screen.this, Button_Anime.class);
startActivity(myIntent);
}
});
答案 0 :(得分:5)
_img是你的imageview。你必须解码你的图像并设置它的大小,如下所示。
File imgFile = new File(_path); // path of your file
if (imgFile.exists()) {
FileInputStream fis = new FileInputStream(imgFile);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 8;
options.inPurgeable = true;
options.inScaled = true;
Bitmap bm = BitmapFactory.decodeStream(fis, null,options);
_img.setImageBitmap(bm);
答案 1 :(得分:0)
您应该使用decodeResource(Resources res, int id, BitmapFactory.Options opts)
,并指定inSampleSize
-
如果设置为值&gt; 1,请求解码器对原始进行二次采样 图像,返回较小的图像以节省内存。