java动画api_java-NineOldAndroids动画无法在API> 10上运行

我正在使用NineOldAndroid库执行动画.动画对于API <= 10效果很好.但是对于API> 10,应用程序强制关闭.这是我的代码：

import static com.nineoldandroids.view.ViewPropertyAnimator.animate;

import android.content.Intent;

import android.graphics.Canvas;

import android.graphics.PixelFormat;

import android.os.Build;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.View;

import android.view.ViewTreeObserver.OnGlobalLayoutListener;

import android.view.WindowManager;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

import android.widget.TextView;

import com.actionbarsherlock.app.ActionBar;

import com.actionbarsherlock.view.MenuItem;

import com.nineoldandroids.animation.Animator;

import com.nineoldandroids.animation.Animator.AnimatorListener;

import com.nineoldandroids.animation.ObjectAnimator;

public class ActivityActualMain extends SherlockActivity {

LinearLayout container1, container2;

RelativeLayout viewTree;

ImageView image, image1, image2;

TextView tv, tv1, tv2, tv3, tv4;

ObjectAnimator anim;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

final int duration = 2000;

setContentView(R.layout.activity_actual_main);

ActionBar bar = getSupportActionBar();

bar.setDisplayHomeAsUpEnabled(true);

bar.setBackgroundDrawable(getResources().getDrawable(

R.drawable.red_actionbar));

viewTree = (RelativeLayout) findViewById(R.id.viewTree);

container1 = (LinearLayout) findViewById(R.id.linearLayout1);

container2 = (LinearLayout) findViewById(R.id.linearLayout2);

image = (ImageView) findViewById(R.id.imageView1);

image1 = (ImageView) findViewById(R.id.imageView2);

image2 = (ImageView) findViewById(R.id.imageView3);

tv = (TextView) findViewById(R.id.text_tech_des);

viewTree.getViewTreeObserver().addOnGlobalLayoutListener(//to check if the layout has been placed in activity

new OnGlobalLayoutListener() {

public void onGlobalLayout() {

if (Build.VERSION.SDK_INT < 16) {

viewTree.getViewTreeObserver().removeGlobalOnLayoutListener(this);}

else{

viewTree.getViewTreeObserver()

.removeOnGlobalLayoutListener(this);

}

anim = ObjectAnimator.ofFloat(image, "y", 0f,

image.getTop());

anim.addListener(new AnimatorListener() {

@Override

public void onAnimationStart(Animator arg0) {

// TODO Auto-generated method stub

ObjectAnimator.ofFloat(tv, "alpha", 1, 0, 1)

.setDuration(duration).start();//line no 82

ObjectAnimator.ofFloat(container1, "x", 0f,

container1.getLeft()).setDuration(1000).start();

ObjectAnimator.ofFloat(container2, "x", 0f,

container2.getLeft()).setDuration(1000).start();

}

@Override

public void onAnimationRepeat(Animator arg0) {

// TODO Auto-generated method stub

}

@Override

public void onAnimationEnd(Animator arg0) {

// TODO Auto-generated method stub

}

@Override

public void onAnimationCancel(Animator arg0) {

// TODO Auto-generated method stub

}

});

anim.setDuration(duration).start();//line no 106

}

});

}

}

这是我的堆栈跟踪：

10-26 19:23:15.203: E/AndroidRuntime(21541): FATAL EXCEPTION: main

10-26 19:23:15.203: E/AndroidRuntime(21541): java.lang.NullPointerException

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.PropertyValuesHolder.setupSetterAndGetter(PropertyValuesHolder.java:523)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ObjectAnimator.initAnimation(ObjectAnimator.java:410)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ValueAnimator.setCurrentPlayTime(ValueAnimator.java:538)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ValueAnimator.start(ValueAnimator.java:928)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ValueAnimator.start(ValueAnimator.java:951)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ObjectAnimator.start(ObjectAnimator.java:385)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.vishalaksh.technex.ActivityActualMain$2$1.onAnimationStart(ActivityActualMain.java:82)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ValueAnimator.start(ValueAnimator.java:937)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ValueAnimator.start(ValueAnimator.java:951)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.nineoldandroids.animation.ObjectAnimator.start(ObjectAnimator.java:385)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.vishalaksh.technex.ActivityActualMain$2.onGlobalLayout(ActivityActualMain.java:106)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.ViewTreeObserver.dispatchOnGlobalLayout(ViewTreeObserver.java:808)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1768)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.Choreographer.doCallbacks(Choreographer.java:562)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.Choreographer.doFrame(Choreographer.java:532)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.os.Handler.handleCallback(Handler.java:730)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.os.Handler.dispatchMessage(Handler.java:92)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.os.Looper.loop(Looper.java:137)

10-26 19:23:15.203: E/AndroidRuntime(21541): at android.app.ActivityThread.main(ActivityThread.java:5103)

10-26 19:23:15.203: E/AndroidRuntime(21541): at java.lang.reflect.Method.invokeNative(Native Method)

10-26 19:23:15.203: E/AndroidRuntime(21541): at java.lang.reflect.Method.invoke(Method.java:525)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)

10-26 19:23:15.203: E/AndroidRuntime(21541): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)

10-26 19:23:15.203: E/AndroidRuntime(21541): at dalvik.system.NativeStart.main(Native Method)