以编程方式将ImageView的重力设置为android中的中心答案

【问题标题】：Setting of ImageView's gravity to the center in android programmatically以编程方式将ImageView的重力设置为android中的中心
【发布时间】：2011-12-21 18:36:30
【问题描述】：

我想用下面的代码设置一个Imageviews,ImageIcons[i]数组的重力到中心，

ImageIcons[i] = new ImageView(this);
ImageIcons[i].setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
layout.addView(ImageIcons[i]);

我在设置重力时被卡住了。我请求 SO 的人指导我。

谢谢

【问题讨论】：

查看我的回答here。它帮助我集中了 Imageview。

标签： android center dynamic android-imageview gravity

【解决方案1】：

试试这个

LinearLayout.LayoutParams layoutParams=new LinearLayout.LayoutParams(width, height);
layoutParams.gravity=Gravity.CENTER;
ImageIcons[i].setLayoutParams(layoutParams);

【讨论】：

完美@Walid Hossain。非常感谢。

【解决方案2】：

从视图中获取布局参数，修改并重新设置。

image.setBackgroundResource(R.drawable.mobile);
LayoutParams params = (LayoutParams) image.getLayoutParams();
params.gravity = Gravity.CENTER;
image.setLayoutParams(params);

【讨论】：

【解决方案3】：

首先将宽度设置为match_parent，然后设置重力，否则重力将不起作用。希望它会起作用。

ImageIcons[i].setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
ImageIcons.setGravity(Gravity.CENTER);

【讨论】：

好的。想知道出了什么问题。感谢 Android Killer。

【解决方案4】：

ImageView myImage = new ImageView(this);
FrameLayout.LayoutParams myImageLayout = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,FrameLayout.LayoutParams.WRAP_CONTENT);
myImageLayout.gravity=Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
            myImage.setLayoutParams(myImageLayout);

【讨论】：

【解决方案5】：

    LinearLayout llBasicInfo = new LinearLayout(context);
    llBasicInfo.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    llBasicInfo.setOrientation(LinearLayout.VERTICAL);
    ImageView imageView = new ImageView(context);
    LinearLayout.LayoutParams layoutParams =new LinearLayout.LayoutParams(200,200);
    layoutParams.gravity=Gravity.CENTER;
    imageView.setLayoutParams(layoutParams);
    llImage.addView(imageView);

【讨论】：

【解决方案6】：

我认为下面的代码可能对某人有所帮助

LinearLayout.LayoutParams layoutParams=new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
layoutParams.leftMargin = 10;
layoutParams.rightMargin = 10;
parent.addView(tips[i], layoutParams);

【讨论】：

【解决方案7】：

如果您的 ImageView 是 RelativeLayout 的子级

那么这可能会有所帮助..

public void setLogoPosition(String pos) 
{

    //_Watermark is ImageView Object

    RelativeLayout.LayoutParams layoutParams =
            (RelativeLayout.LayoutParams) _Watermark.getLayoutParams();


    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, 0);
    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 0);
    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, 0);
    layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, 0);
    layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);

    switch (pos) {
        case "topleft":
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
            break;
        case "topright":
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
            break;
        case "bottomleft":
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
            break;
        case "bottomright":
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
            break;
        case "center":
            layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
            break;
        case "topcenter":
            layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
            break;
        case "bottomcenter":
            layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
            layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
            break;
    }
    _Watermark.setLayoutParams(layoutParams);
}

【讨论】：