1

我正在尝试创建一种方法，每次单击按钮时，我希望屏幕在当前存在的一个下方显示一个相对布局框，或者如果那里没有，则在顶部创建一个并且我希望它保留通过每个按钮单击在下面创建它们。目前它只是在屏幕顶部显示相对布局框，正如它所期望的那样。

这是我到目前为止的代码，有人可以帮我看看我做错了什么以及我能做些什么来解决这个问题：

创建代码：

    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;

}

点击代码：

    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++;
    }

}
4

1 回答 1

2

您可以使用全局变量来存储currentId分配给布局，并在每次添加布局时更新它。

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 函数将多一个属性作为 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;
    }
}

创建新布局函数

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;
    }

还要在 containerParams2 中更改这一行

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

这应该可以正常工作。在我的代码中工作。

于 2013-07-09T08:29:57.390 回答