在Android中以编程方式在当前相对布局下添加相对布局

我正尝试创建一个方法，其中每次单击一个按钮时，我都希望屏幕在当前那里显示一个相对布局框，或者在顶部创建一个相对布局框如果没有一个，我希望它在每个按钮点击下方继续创建它们。目前它只是在屏幕顶部显示相对布局框，就像它期望的那样。在Android中以编程方式在当前相对布局下添加相对布局

下面是代码，我有那么远，有人可以请帮我看看我做错了，我能做些什么来解决这个问题：

的onCreate代码：

Resources r = this.getResources(); 
    dpMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 16, r.getDisplayMetrics()); //Changes pixels to dp of margins 
    dpContainerHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 80, r.getDisplayMetrics()); //Changes pixels to dp of container height 
    dpContainerPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, r.getDisplayMetrics()); //Changes pixels to dp of container padding 

    layout = new RelativeLayout(this); 

    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT); 
    RelativeLayout.LayoutParams textParams1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams textParams2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams textParams3 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams textParams4 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams progressParams1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams imageButtonParams1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams newLayoutButtonParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    RelativeLayout.LayoutParams containerParams1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 
    RelativeLayout.LayoutParams containerParams2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 

    layout.setPadding(dpMargin, dpMargin, dpMargin, dpMargin); 

    //Declaring new views 
    tv1 = new TextView(this); 
    tv2 = new TextView(this); 
    containerLayout1 = new RelativeLayout(this); 
    containerLayout2 = new RelativeLayout(this); 
    tv3 = new TextView(this); 
    tv4 = new TextView(this); 
    pb1 = new ProgressBar(this); 
    ib1 = new ImageButton(this); 
    newLayoutButton = new Button(this); 

    //Declaring views ID's 
    tv1.setId(1); 
    tv2.setId(2); 
    containerLayout1.setId(3); 
    containerLayout2.setId(4); 
    tv3.setId(5); 
    tv4.setId(6); 
    pb1.setId(7); 
    ib1.setId(8); 
    newLayoutButton.setId(9); 

    //Text view 1 
    textParams1.addRule(RelativeLayout.ALIGN_PARENT_TOP); 
    textParams1.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); 
    tv1.setText("TextView1"); 

    //Text view 2 
    textParams2.addRule(RelativeLayout.ALIGN_PARENT_LEFT); 
    textParams2.addRule(RelativeLayout.BELOW, tv1.getId()); 
    textParams2.setMargins(0, 0, 0, dpMargin); 
    tv2.setText("TextView2"); 

    //Container 1 
    containerParams1.addRule(RelativeLayout.ALIGN_LEFT, tv2.getId()); 
    containerParams1.addRule(RelativeLayout.ALIGN_RIGHT, tv1.getId()); 
    containerParams1.addRule(RelativeLayout.BELOW, tv2.getId()); 
    containerParams1.setMargins(0, 0, 0, dpMargin); 
    containerLayout1.setPadding(dpContainerPadding, 0, dpContainerPadding, dpContainerPadding); 
    containerLayout1.setBackgroundResource(R.color.display_panels); 

    //Container 2 
    containerParams2.addRule(RelativeLayout.ALIGN_LEFT, containerLayout1.getId()); 
    containerParams2.addRule(RelativeLayout.ALIGN_RIGHT, containerLayout1.getId()); 
    containerParams2.addRule(RelativeLayout.BELOW, containerLayout1.getId()); 
    containerParams2.setMargins(0, 0, 0, dpMargin); 
    containerLayout2.setBackgroundResource(R.color.display_panels); 

    //Text view 3 
    textParams3.addRule(RelativeLayout.ABOVE, tv4.getId()); 
    textParams3.addRule(RelativeLayout.ALIGN_LEFT, pb1.getId()); 
    tv3.setText("TextView3"); 
    tv3.setTextAppearance(this, android.R.style.TextAppearance_Small); //Need to change text colour to white 
    tv3.setTextColor(getResources().getColor(R.color.text_colour)); 

    //Text view 4 
    textParams4.addRule(RelativeLayout.ABOVE, pb1.getId()); 
    textParams4.addRule(RelativeLayout.CENTER_HORIZONTAL); 
    tv4.setText("TextView4"); 
    tv4.setTextAppearance(this, android.R.style.TextAppearance_Small); //Need to change text colour to white 
    tv4.setTextColor(getResources().getColor(R.color.text_colour)); 

    //Progress bar 1 
    progressParams1.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM); 
    progressParams1.addRule(RelativeLayout.ALIGN_PARENT_LEFT); 
    progressParams1.addRule(RelativeLayout.LEFT_OF, ib1.getId()); 
    pb1.setProgress(40); 
    pb1.setMax(100); 

    //Image button 1 
    imageButtonParams1.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); 
    imageButtonParams1.addRule(RelativeLayout.BELOW, tv4.getId()); 
    ib1.setBackgroundResource(R.color.display_panels); 
    ib1.setImageResource(R.drawable.ic_green_ok); 

    newLayoutButtonParams.addRule(RelativeLayout.ABOVE, tv2.getId()); 
    newLayoutButton.setText("New Layout"); 
    newLayoutButton.setOnClickListener(this); 

    layout.addView(tv1, textParams1); 
    layout.addView(tv2, textParams2); 
    layout.addView(newLayoutButton, newLayoutButtonParams); 
    containerLayout1.addView(tv3, textParams3); 
    containerLayout1.addView(tv4, textParams4); 
    containerLayout1.addView(pb1, progressParams1); 
    containerLayout1.addView(ib1, imageButtonParams1); 
    layout.addView(containerLayout1, containerParams1); 
    layout.addView(containerLayout2, containerParams2); 
    setContentView(layout, layoutParams);

createNewLayout方法的代码：

public RelativeLayout createNewLayout(RelativeLayout newlayout){ 

    newLayoutContainer = new RelativeLayout(this); 
    final RelativeLayout.LayoutParams newLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 
    newLayoutContainer.setLayoutParams(newLayoutParams); 

    newLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT); 
    newLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT); 
    newLayoutParams.addRule(RelativeLayout.BELOW); 
    newLayoutParams.setMargins(0, 0, 0, dpMargin); 
    newLayoutContainer.setBackgroundResource(R.color.display_panels); 

    return newLayoutContainer; 

}

的onClick代码：

public void onClick(View v) { 
    // TODO Auto-generated method stub 
    if(v==newLayoutButton){ 

     layout.addView(createNewLayout(newLayoutContainer), 0); 

    } 
}

编辑

新方法代码：

public void createNewLayout(){ 

    int currentId = 1; 

    for(int i = 1; i <= numberOfLayouts; i++){ 
     newLayoutContainer = new RelativeLayout(this); 
     newLayoutContainer.setId(currentId); 

     if(currentId == 1){ 
      newLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 
      newLayoutParams.addRule(RelativeLayout.ALIGN_LEFT, containerLayout2.getId()); 
      newLayoutParams.addRule(RelativeLayout.ALIGN_RIGHT, containerLayout2.getId()); 
      newLayoutParams.addRule(RelativeLayout.BELOW, containerLayout2.getId()); 
      newLayoutParams.setMargins(0, 0, 0, dpMargin); 
      newLayoutContainer.setBackgroundResource(R.color.display_panels); 
     } 

     else{ 
      newLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 
      newLayoutParams.addRule(RelativeLayout.ALIGN_LEFT, newLayoutContainer.getId()); 
      newLayoutParams.addRule(RelativeLayout.ALIGN_RIGHT, newLayoutContainer.getId()); 
      newLayoutParams.addRule(RelativeLayout.BELOW, currentId); 
      newLayoutParams.setMargins(0, 0, 0, dpMargin); 
      newLayoutContainer.setBackgroundResource(R.color.display_panels); 
     } 

     newLayoutContainer.setLayoutParams(newLayoutParams); 
     layout.addView(newLayoutContainer); 

     currentId++; 
    } 

}

来源

2013-07-09 James Meade

你可以使用一个全局变量来存储分配给布局currentId，每ú添加布局时间更新。

int currentId = 10;

按钮点击功能

public void onClick(View v) { 

if(v==newLayoutButton){ 

    layout.addView(createNewLayout(newLayoutContainer,currentId), 0); 
    currentId++; 

    } 
}

createNewLayout功能将多了一个属性作为currentId。

public RelativeLayout createNewLayout(RelativeLayout newlayout, int currentId){ 

newLayoutContainer = new RelativeLayout(this); 

final RelativeLayout.LayoutParams newLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight); 

newLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT); 
newLayoutParams.addRule(RelativeLayout.BELOW, currentId); 
newLayoutParams.setMargins(0, 0, 0, dpMargin); 

newLayoutContainer.setLayoutParams(newLayoutParams); 

newLayoutContainer.setBackgroundResource(R.color.display_panels); 

return newLayoutContainer; 
}

试试这个工作代码：

int currentId = 5; 
@Override 
public void onClick(View v) { 
    if(v.getId()==9){ 
     containerLayout2.addView(createNewLayout(currentId), 0); 
     currentId +=10; 
    } 
}

createNewLayoutFunction

public RelativeLayout createNewLayout(int currentId){ 

    RelativeLayout newLayoutContainer = new RelativeLayout(this); 

    final RelativeLayout.LayoutParams newLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 

    newLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT); 
    newLayoutParams.addRule(RelativeLayout.BELOW, currentId); 
    newLayoutParams.setMargins(0, 0, 0, dpMargin); 

    newLayoutContainer.setLayoutParams(newLayoutParams); 

    RelativeLayout.LayoutParams image = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
    ImageView x = new ImageView(this); 
    x.setImageResource(android.R.drawable.ic_media_play); 

    newLayoutContainer.addView(x, image); 

    newLayoutContainer.setId(currentId+10); 
    newLayoutContainer.setBackgroundResource(R.color.display_panels); 

    return newLayoutContainer; 
    }

也会改变该行containerParams2

RelativeLayout.LayoutParams containerParams2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, dpContainerHeight+330);

这应该工作的罚款。在我的代码中工作。

来源

2013-07-09 08:29:57 rachit

这对我来说很有意义，我认为我可能需要做类似的事情，但它仍然在屏幕顶部显示框，并且当我继续单击按钮时，不会再出现。你能看到其他任何可以解决这个问题的方法吗？非常感谢您的帮助！ –

@JamesMeade：编辑了一下代码。请现在尝试，如果它的工作。 – rachit

谢谢你的更新代码，但它仍然在做同样的事情。你还有其他建议吗？ –

在Android中以编程方式在当前相对布局下添加相对布局

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