如何以編程方式在RelativeLayout中部署視圖？我試圖以編程方式(而不是通過XML聲明)實現以下目標：<RelativeLayout...>
<TextView ... android:id="@+id/label1" />
<TextView ... android:id="@+id/label2"
android:layout_below: "@id/label1" /></RelativeLayout>換句話說，我如何使第二個TextView出現在第一個代碼下面，但我想在代碼中這樣做：RelativeLayout layout = new RelativeLayout(this);TextView label1 = new TextView(this);TextView label2 = new TextView(this);...
layout.addView(label1);layout.addView(label2);setContentView(layout);最新情況：謝謝，TreeUK。我理解總體方向，但仍然行不通-“B”與“A”重疊。我做錯什么了？RelativeLayout layout = new RelativeLayout(this);TextView tv1 = new TextView(this);tv1.setText("A");TextView tv2 = new TextView(this);
tv2.setText("B");RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.FILL_PARENT);
lp.addRule(RelativeLayout.RIGHT_OF, tv1.getId());layout.addView(tv1);
layout.addView(tv2, lp);
3 回答
慕姐4208626
TA貢獻1852條經驗 獲得超7個贊
LinearLayout linearLayout = new LinearLayout(this);RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams( LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);relativeParams.addRule(RelativeLayout.ALIGN_PARENT_TOP); parentView.addView(linearLayout, relativeParams);
TextView tv1 = new TextView(this);tv1.setId(1);TextView tv2 = new TextView(this);tv2.setId(2);
addRule(RelativeLayout.RIGHT_OF, tv1.getId());
炎炎設計
TA貢獻1808條經驗 獲得超4個贊
Android 22最小可運行示例
import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;
import android.widget.RelativeLayout;import android.widget.TextView;public class Main extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final RelativeLayout relativeLayout = new RelativeLayout(this);
final TextView tv1;
tv1 = new TextView(this);
tv1.setText("tv1");
// Setting an ID is mandatory.
tv1.setId(View.generateViewId());
relativeLayout.addView(tv1);
// tv2.
final TextView tv2;
tv2 = new TextView(this);
tv2.setText("tv2");
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.FILL_PARENT);
lp.addRule(RelativeLayout.BELOW, tv1.getId());
relativeLayout.addView(tv2, lp);
// tv3.
final TextView tv3;
tv3 = new TextView(this);
tv3.setText("tv3");
RelativeLayout.LayoutParams lp2 = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT );
lp2.addRule(RelativeLayout.BELOW, tv2.getId());
relativeLayout.addView(tv3, lp2);
this.setContentView(relativeLayout);
}}android create project .... 構建代碼最少的GitHub存儲庫.
- 3 回答
- 0 關注
- 450 瀏覽
添加回答
舉報
0/150
提交
取消