GOT混淆语法错误!! [英] GOT Confuse syntax error!!

问题描述

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
    }

    RelativeLayout rl = (RelativeLayout) findViewById(R.id.imageView5);
    ImageView iv;
    RelativeLayout.LayoutParams params; //; syntax error!! over HERE, params Error too 
    
    iv = new ImageView(this);
    iv.setBackgroundColor(Color.YELLOW);
    params = new RelativeLayout.LayoutParams(30, 40);
    params.leftMargin = 50;
    params.topMargin = 60;
    rl.addView(iv, params);

}//} and HERE too

我做错了吗？来自

http：// stackoverflow.com/questions/3294590/set-the-absolute-position-of-a-view-in-android [ ^ ]

推荐答案

尝试如下

try like below

public class MainActivity extends Activity {
 
    RelativeLayout rl;
    ImageView iv;
    RelativeLayout.LayoutParams params;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        r1=(RelativeLayout) findViewById(R.id.imageView5);
        iv = new ImageView(this);
        iv.setBackgroundColor(Color.YELLOW);
        params = new RelativeLayout.LayoutParams(30, 40);
        params.leftMargin = 50;
        params.topMargin = 60;
        rl.addView(iv, params);
        
    }

 
}

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