使用Android动画实现组件抖动

jopen 10年前

其原理很简单，就是使用动画让组件来回摆动，代码如下：

MainActivity：

    package com.home.animwindow;                import android.app.Activity;        import android.os.Bundle;        import android.view.View;        import android.view.View.OnClickListener;        import android.view.animation.Animation;        import android.view.animation.AnimationUtils;        import android.widget.Button;        import android.widget.EditText;        import android.widget.ImageView;                public class MainActivity extends Activity {            private EditText edit;            private Button btn;            private ImageView image;                    @Override            public void onCreate(Bundle savedInstanceState) {                super.onCreate(savedInstanceState);                setContentView(R.layout.activity_main);                edit = (EditText) findViewById(R.id.edit);                image = (ImageView) findViewById(R.id.main_iv);                btn = (Button) findViewById(R.id.btn);                btn.setOnClickListener(new OnClickListener() {                    @Override                    public void onClick(View v) {                        Animation animation = AnimationUtils.loadAnimation(                                MainActivity.this, R.anim.myanim);                        edit.startAnimation(animation);                        image.startAnimation(animation);                    }                });            }        }
</div> </div>

布局：

    <?xml version="1.0" encoding="utf-8"?>        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical" >                    <EditText                android:id="@+id/edit"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_marginTop="100dp"                android:text="点击按钮、此窗口抖动" />                    <Button                android:id="@+id/btn"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="按钮" />                    <ImageView                android:id="@+id/main_iv"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:src="@drawable/ic_launcher" />                </LinearLayout>
</div> </div>

动画myanim：

    <?xml version="1.0" encoding="utf-8"?>        <set xmlns:android="http://schemas.android.com/apk/res/android"            android:interpolator="@anim/cycle" >                    <translate                android:duration="300"                android:fromXDelta="0"                android:fromYDelta="0"                android:toXDelta="-10"                android:toYDelta="-10" />            <translate                android:duration="300"                android:fromXDelta="0"                android:fromYDelta="0"                android:startOffset="300"                android:toXDelta="10"                android:toYDelta="-10" />            <translate                android:duration="300"                android:fromXDelta="0"                android:fromYDelta="0"                android:startOffset="600"                android:toXDelta="-10"                android:toYDelta="10" />            <translate                android:duration="300"                android:fromXDelta="0"                android:fromYDelta="0"                android:startOffset="900"                android:toXDelta="10"                android:toYDelta="10" />                </set>
</div> </div>

cycle：

<?xml version="1.0" encoding="utf-8"?>    <cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"        android:cycles="5" />
</div> </div>

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