Question

我创建了一个RelativeLayout，其中包含Button和TextView。使用此代码，TextView会显示在Button上方。我该怎么做，将Button左边和TextView对齐？缺什么？这是我的代码：

    final RelativeLayout topRelativeLayout = new RelativeLayout(this);
    RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    topRelativeLayout.setLayoutParams(relativeLayoutParams);
    mainLinearLayout.addView(topRelativeLayout);

    final Button restartButton = new Button(this);
    restartButton.setText(R.string.restartButton);
    LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    restartButton.setLayoutParams(buttonParams);
    restartButton.setGravity(Gravity.LEFT);
    topRelativeLayout.addView(restartButton);

    final TextView timeTextView = new TextView(this);
    timeTextView.setText(R.string.timeTextView);
    timeTextView.setGravity(Gravity.RIGHT);
    topRelativeLayout.addView(timeTextView);

谢谢！

Answer 1

试试这个

RelativeLayout.LayoutParams buttonParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);
buttonParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
button.setLayoutParams(buttonParams);

RelativeLayout.LayoutParams textviewParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);
textviewParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
textView.setLayoutParams(textviewParams);

Answer 2

如果这是您要实现的目标，则需要在该视图上使用setID方法为按钮或TextView设置ID。完成后，您可以将另一个视图的布局参数设置为相对于按钮的位置。像这样：

button.setId(1011);///OR WHATEVER INT YOU WANT
textView.setLayoutParams(new RelativeLayout.LayoutParams(width,height,left,top,right,bottomPadding,null,new int[][]{{RelatitiveLayout.ABOVE, button.getId()}});

要在RelativeLayout中设置视图的对齐方式，请使用：

button.setLayoutParams(new RelativeLayout.LayoutParams(width,height,0,0,0,0,new int[]{RelativeLayout.ALIGN_PARENT_RIGHT}));

如何以编程方式显示Android中RelativeLayout按钮旁边的文本视图？

2 个答案: