我正在开发一个用于语言学习的应用程序。我想直接在外语单词下面显示翻译。我目前尝试使用动态创建的表来完成此任务。但是表格会比显示宽度更宽,而且很多表格都不在视野范围内。我想测试单词是否会被放出View,在这种情况下继续将这些单词写在下面的新表中。
如何在运行时获取表的宽度?
我是android编程的新手。您是否有更好的想法如何在屏幕上显示不同的语言文本?
Resources res = getResources();
cn = res.getStringArray(R.array.lesson5_1_HanYu);
py = res.getStringArray(R.array.lesson5_1_pinyin);
dt = res.getStringArray(R.array.lesson5_1_deutsch);
Intent in = getIntent();
int index = in.getIntExtra("com.example.ITEM_INDEX", -1);
TableLayout tableLayout;
TableRow tableRow1, tableRow2, tableRow3;
TextView cn1TV, py1TV, dt1TV, cn2TV, py2TV, dt2TV, cn3TV, py3TV, dt3TV;
TextView[] cnTV = new TextView[cn.length];
TextView[] pyTV = new TextView[py.length];
TextView[] dtTV = new TextView[dt.length];
if(index > -1){
tableLayout = new TableLayout(this);
tableRow1 = new TableRow(this);
tableRow2 = new TableRow(this);
tableRow3 = new TableRow(this);
TableLayout.LayoutParams lp = new TableLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
int i = 0;
boolean lineEnd = false;
while(i < cn.length && lineEnd == false){
cnTV[i] = new TextView(this);
cnTV[i].setText(cn[i] + " ");
pyTV[i] = new TextView(this);
pyTV[i].setText(py[i] + " ");
dtTV[i] = new TextView(this);
dtTV[i].setText(dt[i] + " ");
tableRow1.addView(cnTV[i]);
tableRow2.addView(pyTV[i]);
tableRow3.addView(dtTV[i]);
// Check if next string is still in DisplayView area:
// Code ...
// change value of lineEnd if necessary
i++; // proceed with next element in next interation
}
tableLayout.addView(tableRow1);
tableLayout.addView(tableRow2);
tableLayout.addView(tableRow3);
setContentView(tableLayout);
}
这是我测量textview的项目中的代码示例。你会测量一个TableRow
TextView filter = findViewById(R.id.list_filter);
filter.measure(0, 0);
int center = filter.getLeft() + filter.getMeasuredWidth()/2;
Point p = new ViewTarget(filter).getPoint();
Log.i(TAG, "x: " + p.x
+ " width: " + filter.getWidth()
+ " right: " + filter.getRight()
+ " left: " + filter.getLeft()
+ " measured: " + filter.getMeasuredWidth()
);
Log.i(TAG, "value: " + (0- filter.getLeft() - filter.getMeasuredWidth()));