android实现点击图片全屏展示效果

本文实例为大家分享了android实现点击图片全屏展示的具体代码，供大家参考，具体内容如下

MainActivity:

public class MainActivity extends AppCompatActivity {
private ImageView imageView;
private Dialog dialog;
private ImageView image;

@Override
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();

//小图的点击事件（弹出大图）
imageView.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 dialog.show();
 }
});

}

private void init() {
imageView = (ImageView) findViewById(R.id.image);

//展示在dialog上面的大图
dialog = new Dialog(MainActivity.this,R.style.FullActivity);

WindowManager.LayoutParams attributes = getWindow().getAttributes();
attributes.width = WindowManager.LayoutParams.MATCH_PARENT;
attributes.height = WindowManager.LayoutParams.MATCH_PARENT;
dialog.getWindow().setAttributes(attributes);

image = getImageView();
dialog.setContentView(image);

//大图的点击事件（点击让他消失）
image.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 dialog.dismiss();
 }
});

}

//动态的ImageView
private ImageView getImageView(){
ImageView imageView = new ImageView(this);

//宽高
imageView.setLayoutParams(new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));

//imageView设置图片
@SuppressLint("ResourceType") InputStream is = getResources().openRawResource(R.drawable.lala);

Drawable drawable = BitmapDrawable.createFromStream(is, null);
imageView.setImageDrawable(drawable);

return imageView;
}
}

布局文件:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<ImageView
android:id="@+id/image"
android:src="@drawable/lala"
android:layout_centerInParent="true"
android:layout_width="200dp"
android:layout_height="200dp" />

</LinearLayout>

style:

<style name="FullActivity" parent="AppTheme">
<item name="windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
</style>

效果图:

没点击:

点击后:

来源：https://blog.csdn.net/ykx_1448488568/article/details/86238620