有没有什么办法可以旋转按钮而不在Android 2.1的使用动画 [英] Is there any way to rotate a button without using animation in android 2.1
本文介绍了有没有什么办法可以旋转按钮而不在Android 2.1的使用动画的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在搜索方法的用于旋转的按钮。不使用动画..!
I am in search of methodology for rotating a button. without using animations..!
我不希望因为<一个用动画href="http://stackoverflow.com/questions/8037185/onlclick-listener-is-not-working-properly">this.
如果任何机构有任何想法,请帮助我。
if any body has any idea please help me.
XML
<?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" android:id="@+id/ll" android:gravity="center_vertical">
<TextView android:layout_width="fill_parent"
android:layout_height="wrap_content" android:text="@string/hello" />
<com.mind.RotateButton android:layout_width="100dp" android:gravity="center_vertical"
android:layout_height="100dp" android:id="@+id/ll1">
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Button" android:id="@+id/but" />
</com.mind.RotateButton>
</LinearLayout>
code
code
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button) findViewById(R.id.but);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "Hello", Toast.LENGTH_SHORT).show();
}
});
}
在此先感谢.......!
Thanks in advance.......!
推荐答案
扩展Button类:
public class RotateButton extends Button{
public RotateButton(Context context) {
super(context);
}
public RotateButton(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.save();
canvas.rotate(45, getWidth() / 2, getHeight() / 2);
super.onDraw(canvas);
canvas.restore();
}
}
和您的布局:
<com.samples.myapp.ui.RotateButton
android:layout_height="wrap_content" android:id="@+id/MyBtn"
android:padding="5dip" android:textColor="@color/darkGreen"
android:textSize="16dip" android:text="TextView"
android:layout_width="wrap_content"></com.samples.myapp.ui.RotateButton>
-------------------------------------------- --------------------------
编辑:
另一种方法:设计一个可旋转的LinearLayout,并把你控制它。的LinearLayout可以完全旋转:
Another approach: design a rotatable LinearLayout and put your controls in it. LinearLayout can be rotated completely:
package org.mabna.order.ui;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.util.AttributeSet;
import android.view.MotionEvent;
public class RotateLinearLayout extends LinearLayout{
private Matrix mForward = new Matrix();
private Matrix mReverse = new Matrix();
private float[] mTemp = new float[2];
public RotateLinearLayout(Context context) {
super(context);
}
public RotateLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void dispatchDraw(Canvas canvas) {
canvas.rotate(180, getWidth() / 2, getHeight() / 2);
mForward = canvas.getMatrix();
mForward.invert(mReverse);
canvas.save();
canvas.setMatrix(mForward); // This is the matrix we need to use for
// proper positioning of touch events
super.dispatchDraw(canvas);
canvas.restore();
invalidate();
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
event.setLocation(getWidth() - event.getX(), getHeight() - event.getY());
return super.dispatchTouchEvent(event);
}
}
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