如何在Android中设置特定图像的透明图像?
我正在使用一个如何在Android中设置特定图像的透明图像?,android,Android,我正在使用一个加号/减号按钮来增加和减少图像透明度: public void onClick(View v) { selectGhostDialog = new Dialog(MainActivity.this); selectGhostDialog.setContentView(R.layout.gridview_layout); selectGhostDialog.setTitle("select ghost"); gridview = (GridView)
加号
/减号
按钮来增加和减少图像透明度:
public void onClick(View v) {
selectGhostDialog = new Dialog(MainActivity.this);
selectGhostDialog.setContentView(R.layout.gridview_layout);
selectGhostDialog.setTitle("select ghost");
gridview = (GridView) selectGhostDialog.findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(MainActivity.this));
gridview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
final int position, long id) {
photoSorter.loadImages1(MainActivity.this,
Constant.mThumbIds[position]);
selectGhostDialog.dismiss();
imgBtnundo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
photoSorter.unloadImages(MainActivity.this,
Constant.mThumbIds[position]);
}
});
}
});
selectGhostDialog.show();
}
});
public void onClick(视图v){
选择GhostDialog=新建对话框(MainActivity.this);
选择GhostDialog.setContentView(R.layout.gridview\u布局);
selectGhostDialog.setTitle(“选择重影”);
gridview=(gridview)选择GhostDialog.findViewById(R.id.gridview);
setAdapter(新的ImageAdapter(MainActivity.this));
setOnItemClickListener(新的OnItemClickListener(){
public void onItemClick(AdapterView父视图、视图v、,
最终整数位置,长id){
photoSorter.loadImages1(MainActivity.this,
常数.mThumbIds[位置];
选择GhostDialog.disclose();
imgBtnundo.setOnClickListener(新的OnClickListener(){
@凌驾
公共void onClick(视图v){
photoSorter.unloadImages(MainActivity.this,
常数.mThumbIds[位置];
}
});
}
});
选择GhostDialog.show();
}
});
请帮助我使用该类方法从
photoposter类设置此透明度。使用ImageView.getBackground.setAlpha(value)
;alpha值为0-255,但我使用photoposter类进行放大和缩小,我不知道哪个方法调用Transperent