安卓动态onClick

Question

第一次发帖请温柔...

这段代码在 textviews simples 中创建了一个 10 x 10 的表格，里面全是连字符...

对于 onClickListner，我需要它在单击文本时更改颜色。

它在 tv.setTextColor(Color.RED); 上失败

可以排序还是有更好的办法？？

谢谢。

_临时类:

public class _Temp extends Activity implements OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.a_temp);


    TableLayout treeTable = (TableLayout) findViewById(R.id.main_table);

    // Add 10 Rows / 10 Cols ~~~~~~~~~~~~~~~~~~~~~~~~~~
    int idxCount = 0;

    for (int tree = 1; tree <= 10; tree++) {
        idxCount = 0;

        TableRow TableRows = new TableRow(this);
        TableRows.setId(tree * 100 + idxCount);
        TableRows.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
        TableRows.setBackgroundColor(Color.LTGRAY);
        idxCount++;

        for (int bird = 1; bird <= 10; bird++) {
            TextView label_TableCols2 = new TextView(this);
            label_TableCols2.setId(tree * 100 + idxCount);
            label_TableCols2.setBackgroundColor(Color.DKGRAY);
            label_TableCols2.setClickable(true);
            label_TableCols2.setOnClickListener(this);

            label_TableCols2.setText("-");

            TableRows.addView(label_TableCols2); // add the column to the table row
            idxCount++;
        }
        treeTable.addView(TableRows, new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
    }
}

public void onClick(View v) {
    Log.i("scoreTable", "Something Clicked - ID = " + Integer.toString(v.getId()));

    int resId = getResources().getIdentifier(Integer.toString(v.getId()), "id", getPackageName());

    Log.i("scoreTable", "Colour Update 1 - resId = " + Integer.toString(resId));

    TextView tv = (TextView) findViewById(resId);

    Log.i("scoreTable", "Colour Update 2 - Just to see if it gets this far");

    tv.setTextColor(Color.RED);

    Log.i("scoreTable", "Colour Update 3 - Just to see if it gets this far");
}
}

和a_temp.xml

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <HorizontalScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

                <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:orientation="vertical" >

            <TableLayout
                xmlns:android="http://schemas.android.com/apk/res/android"
                android:id="@+id/main_table"
                android:layout_width="match_parent"
                android:layout_height="fill_parent" >

            </TableLayout>

        </LinearLayout>

    </HorizontalScrollView>

</ScrollView>

编辑:好吧，这太简单了……用充气机怎么样!!

因此，单击表格充气器弹出窗口中的项目，选择颜色并单击“选择颜色”按钮，更新单击的连字符的颜色。

public void onClick(View v) {
    ((TextView) v).setTextColor(Color.RED); // <--- SWEET, WORKING

    AlertDialog.Builder PopUpBuilder = new AlertDialog.Builder(this);

    //...

    PopUpBuilder.setPositiveButton("Choose Colour", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {

            // Do stuff and store global variables

            updateTable();
        }
    });
    AlertDialog PopupDialog = PopUpBuilder.create();
    PopupDialog.show();
} 

public void updateTable() {

    TextView scoreTableTitle = (TextView) findViewById(R.id.textTitle1);
    scoreTableTitle.setText("woo woo"); // <--- WORKING

    ((TextView) v).setTextColor(Color.BLUE); // <--- ????           
}

Answer 1

点击的 View 是您的 TextView，所以您只需在您的监听器上设置他的颜色即可:

public void onClick(View v) {
    ((TextView) v).setTextColor(Color.RED);
}