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私はListViewアンドロイドで取り組んでいます。私は一般的な方法を使用してAndroidに記入する方法を知っていますListView。しかし、以下のようなクラスがあり、2つTextViewのaButtonとaが含まれているとしProgressBarます。宣言しRelativeLayout、このレイアウトにすべてのビューを正常に追加しました。（を使用してテストしsetContentView(new ListViewItem(this).getLayout());ましたが、基本的には問題ありません）。

public class ListViewItem {
    public ListViewItem(Context context) {
        this.M_speedTextView = new TextView(context);
        this.M_nameTextView = new TextView(context);
        this.M_progressBar = new ProgressBar(context, null,
                android.R.attr.progressBarStyleHorizontal);
        this.M_activityButton = new Button(context);
        this.M_layout = new RelativeLayout(context);

        this.M_speedTextView.setId(new Random().nextInt());
        this.M_nameTextView.setId(new Random().nextInt());
        this.M_progressBar.setId(new Random().nextInt());
        this.M_activityButton.setId(new Random().nextInt());

        this.M_layout.setId(new Random().nextInt());
    }

    public void setSpeed(int speed) {
        this.M_speedTextView.setText(Integer.toString(speed));
    }

    public void setName(String name) {
        this.M_nameTextView.setText(name);
    }

    public void setProgress(int progress) {
        this.M_progressBar.setProgress(progress);
    }

    public void setButtonText(String text) {
        this.M_activityButton.setText(text);
    }

    public RelativeLayout getLayout() {
        // Layout setting
        this.M_layout.setLayoutParams(new LayoutParams(
                LayoutParams.FILL_PARENT, 50));
        this.M_layout.setBackgroundResource(android.R.color.transparent);

        // Name Text setting
        LayoutParams nameTextParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        nameTextParams.setMargins(5, 10, 0, 0);
        nameTextParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, 1);
        nameTextParams.addRule(RelativeLayout.LEFT_OF,
                this.M_speedTextView.getId());

        this.M_nameTextView.setTextSize(15);
        this.M_nameTextView.setText("TextView");
        this.M_nameTextView.setSingleLine();
        this.M_nameTextView.setEllipsize(TruncateAt.END);

        this.M_layout.addView(this.M_nameTextView, nameTextParams);

        // Activity Button setting
        LayoutParams activityParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        activityParams.setMargins(0, 5, 5, 0);
        activityParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 1);
        activityParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 1);

        this.M_activityButton.setText("Start");

        this.M_layout.addView(this.M_activityButton, activityParams);

        // ProgressBar setting
        LayoutParams progressParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        progressParams.addRule(RelativeLayout.ALIGN_BOTTOM,
                this.M_activityButton.getId());
        progressParams.addRule(RelativeLayout.ALIGN_LEFT,
                this.M_nameTextView.getId());
        progressParams.addRule(RelativeLayout.BELOW,
                this.M_nameTextView.getId());
        progressParams.addRule(RelativeLayout.LEFT_OF,
                this.M_activityButton.getId());

        this.M_layout.addView(this.M_progressBar, progressParams);

        // Speed TextView setting
        LayoutParams speedParam = new LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
        speedParam.addRule(RelativeLayout.ALIGN_BASELINE,
                this.M_nameTextView.getId());
        speedParam.addRule(RelativeLayout.ALIGN_BOTTOM,
                this.M_nameTextView.getId());
        speedParam.addRule(RelativeLayout.LEFT_OF,
                this.M_activityButton.getId());

        this.M_speedTextView.setText("0 KiB/s");
        this.M_speedTextView.setTextSize(15);

        this.M_layout.addView(this.M_speedTextView, speedParam);

        return this.M_layout;
    }

    TextView M_speedTextView;
    TextView M_nameTextView;
    ProgressBar M_progressBar;
    Button M_activityButton;
    RelativeLayout M_layout;
}

ここで、の配列を作成し、ListViewItemこれらの配列アイテムをListViewに追加したいと思います。getLayout()（ ListViewItemクラスのメソッドを使用して、これらすべてのビューを含むレイアウトを取得できます）。

これらのビューを動的に追加したいことに注意してください。それを記入するための一般的な方法を使用していません。誰かが私にこれに到達する方法を教えてもらえますか？

EDIT一般的な方法：xmlファイルをlistViewItemとして宣言し、そのsubItemを膨らませて使用し、getViewメソッドで返します。

私が現在使用しているアダプタクラスとLogCatエラーを編集します：

public class ListViewAdapter extends BaseAdapter {
    private ArrayList<ListViewItem> M_items;

    public ListViewAdapter(ArrayList<ListViewItem> items) {
        this.M_items = items;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        return this.M_items.get(position).getLayout();
    }

    @Override
    public int getCount() {
        return this.M_items.size();
    }

    @Override
    public ListViewItem getItem(int position) {
        return this.M_items.get(position);
    }

    @Override
    public long getItemId(int position) {
        return this.M_items.get(position).getId();
    }
}

LogCatエラー：

09-03 03:56:23.359: E/AndroidRuntime(9415): FATAL EXCEPTION: main
09-03 03:56:23.359: E/AndroidRuntime(9415): java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.ListView.measureScrapChild(ListView.java:1189)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.ListView.measureHeightOfChildren(ListView.java:1272)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.ListView.onMeasure(ListView.java:1181)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.View.measure(View.java:8313)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.RelativeLayout.measureChild(RelativeLayout.java:566)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:381)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.View.measure(View.java:8313)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.View.measure(View.java:8313)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.LinearLayout.measureVertical(LinearLayout.java:531)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.LinearLayout.onMeasure(LinearLayout.java:309)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.View.measure(View.java:8313)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.View.measure(View.java:8313)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.ViewRoot.performTraversals(ViewRoot.java:845)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1866)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.os.Handler.dispatchMessage(Handler.java:99)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.os.Looper.loop(Looper.java:130)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at android.app.ActivityThread.main(ActivityThread.java:3687)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at java.lang.reflect.Method.invokeNative(Native Method)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at java.lang.reflect.Method.invoke(Method.java:507)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
09-03 03:56:23.359: E/AndroidRuntime(9415):     at dalvik.system.NativeStart.main(Native Method)

前もって感謝します ：）

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3 に答える 3

0

投稿したListViewItemクラスの代わりにこのクラスを使用しようとしています：

public class ListViewItem extends RelativeLayout {
    @SuppressWarnings("deprecation")
    public ListViewItem(Context context) {
        super(context);

        this.M_speedTextView = new TextView(context);
        this.M_nameTextView = new TextView(context);
        this.M_progressBar = new ProgressBar(context, null,
                android.R.attr.progressBarStyleHorizontal);
        this.M_activityButton = new Button(context);

        this.M_speedTextView.setId(new Random().nextInt());
        this.M_nameTextView.setId(new Random().nextInt());
        this.M_progressBar.setId(new Random().nextInt());
        this.M_activityButton.setId(new Random().nextInt());

        this.setId(new Random().nextInt());

        /***************************************************************/
        this.setLayoutParams(new AbsListView.LayoutParams(
                LayoutParams.FILL_PARENT, 50));
        this.setBackgroundResource(android.R.color.transparent);

        // Name Text setting
        LayoutParams nameTextParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        nameTextParams.setMargins(5, 10, 0, 0);
        nameTextParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, 1);
        nameTextParams.addRule(RelativeLayout.LEFT_OF,
                this.M_speedTextView.getId());

        this.M_nameTextView.setTextSize(15);
        this.M_nameTextView.setText("TextView");
        this.M_nameTextView.setSingleLine();
        this.M_nameTextView.setEllipsize(TruncateAt.END);

        this.addView(this.M_nameTextView, nameTextParams);

        // Activity Button setting
        LayoutParams activityParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        activityParams.setMargins(0, 5, 5, 0);
        activityParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 1);
        activityParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 1);

        this.M_activityButton.setText("Start");

        this.addView(this.M_activityButton, activityParams);

        // ProgressBar setting
        LayoutParams progressParams = new LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        progressParams.addRule(RelativeLayout.ALIGN_BOTTOM,
                this.M_activityButton.getId());
        progressParams.addRule(RelativeLayout.ALIGN_LEFT,
                this.M_nameTextView.getId());
        progressParams.addRule(RelativeLayout.BELOW,
                this.M_nameTextView.getId());
        progressParams.addRule(RelativeLayout.LEFT_OF,
                this.M_activityButton.getId());

        this.addView(this.M_progressBar, progressParams);

        // Speed TextView setting
        LayoutParams speedParam = new LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
        speedParam.addRule(RelativeLayout.ALIGN_BASELINE,
                this.M_nameTextView.getId());
        speedParam.addRule(RelativeLayout.ALIGN_BOTTOM,
                this.M_nameTextView.getId());
        speedParam.addRule(RelativeLayout.LEFT_OF,
                this.M_activityButton.getId());

        this.M_speedTextView.setText("0 KiB/s");
        this.M_speedTextView.setTextSize(15);

        this.addView(this.M_speedTextView, speedParam);
    }

    public void setSpeed(int speed) {
        this.M_speedTextView.setText(Integer.toString(speed));
    }

    public void setName(String name) {
        this.M_nameTextView.setText(name);
    }

    public void setProgress(int progress) {
        this.M_progressBar.setProgress(progress);
    }

    public void setButtonText(String text) {
        this.M_activityButton.setText(text);
    }

    TextView M_speedTextView;
    TextView M_nameTextView;
    ProgressBar M_progressBar;
    Button M_activityButton;
}

とgetViewアダプターの方法で：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    return this.M_items.get(position);
}
于 2012-09-03T00:24:07.467 に答える