标签:一手遮天 imageView2 imageView3 void imageView1 import Android view
一手遮天 Android - view(基础): 剪裁
示例如下:
/view/ViewDemo3.java
/**
* 演示 view 剪裁
*/
package com.webabcd.androiddemo.view;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.Outline;
import android.os.Bundle;
import android.view.View;
import android.view.ViewOutlineProvider;
import android.widget.ImageView;
import com.webabcd.androiddemo.R;
public class ViewDemo3 extends AppCompatActivity {
private ImageView _imageView1;
private ImageView _imageView2;
private ImageView _imageView3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view_viewdemo3);
_imageView1 = findViewById(R.id.imageView1);
_imageView2 = findViewById(R.id.imageView2);
_imageView3 = findViewById(R.id.imageView3);
sample1();
sample2();
sample3();
}
// 圆形剪裁
private void sample1() {
ViewOutlineProvider viewOutlineProvider = new ViewOutlineProvider() {
@Override
public void getOutline(View view, Outline outline) {
outline.setOval(0,0,_imageView1.getWidth(), _imageView1.getHeight());
}
};
_imageView1.setOutlineProvider(viewOutlineProvider);
_imageView1.setClipToOutline(true);
}
// 矩形剪裁
private void sample2() {
ViewOutlineProvider viewOutlineProvider = new ViewOutlineProvider() {
@Override
public void getOutline(View view, Outline outline) {
outline.setRect(20,0,_imageView2.getWidth(), _imageView2.getHeight());
}
};
_imageView2.setOutlineProvider(viewOutlineProvider);
_imageView2.setClipToOutline(true);
}
// 圆角剪裁
private void sample3() {
ViewOutlineProvider viewOutlineProvider = new ViewOutlineProvider() {
@Override
public void getOutline(View view, Outline outline) {
outline.setRoundRect(0,0,_imageView3.getWidth(), _imageView3.getHeight(), 20);
}
};
_imageView3.setOutlineProvider(viewOutlineProvider);
_imageView3.setClipToOutline(true);
}
}
/layout/activity_view_viewdemo3.xml
<?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">
<ImageView
android:id="@+id/imageView1"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/img_sample_son"/>
<ImageView
android:id="@+id/imageView2"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/img_sample_son"/>
<ImageView
android:id="@+id/imageView3"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/img_sample_son"/>
</LinearLayout>
标签:一手遮天,imageView2,imageView3,void,imageView1,import,Android,view 来源: https://www.cnblogs.com/webabcd/p/android_view_ViewDemo3.html
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