Question

我尝试动态创建linerlayout，我创建了两个buttoms。

LinearLayout layout = new LinearLayout(this);
        layout.setOrientation(LinearLayout.HORIZONTAL);
        layout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                LayoutParams.FILL_PARENT));

        TextView titleView = new TextView(this);
        titleView.setWidth(LayoutParams.WRAP_CONTENT);
        titleView.setHeight(LayoutParams.WRAP_CONTENT);
        titleView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
        titleView.setText("Hallo Welt!");
        layout.addView(titleView);

        Button btnConnect = new Button(this);
        btnConnect.setText("Connect");
        layout.addView(btnConnect);

        Button btnDisconnect = new Button(this);
        btnDisconnect.setText("Disconnect");
        layout.addView(btnDisconnect);

我想将Connect按钮放在左上角，并想将disconnet按钮放到右上角。我怎么能这样做？

Answer 1

您是否尝试为按钮设置布局重力？

LayoutParams params;

Button btnConnect = new Button(this);
params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.Left;
btnConnect.setLayoutParams(params);
...
Button btnDisconnect = new Button(this);
params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.Right;
btnConnect.setLayoutParams(params);
...

布局重力定义了在其父级中放置视图的位置（另请参阅Gravity and layout_gravity on Android）

干杯

Answer 2

您可以使用RelativeLayout而不是线性布局。

并添加规则到布局参数 RelativeLayout.Layoutparams params = RelativeLayout.Layoutparams params = (RelativeLayout.LayoutParams)button.getLayoutParams(); params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

如何正确放置一个按钮和另一个按钮

2 个答案: