2017-10-12 98 views
0

因此,我已经成功地使用下面的一段代码编程创建了多个文本视图。我想为这些文本视图创建一个高效的单个侦听器,因为我需要对点击执行操作。我如何知道哪个textview被点击并以编程方式附加一个监听器?在Android中以编程方式创建的多个文本视图的单个onclick监听器

PS:请勿使用XML布局文件发布解决方案。提前致谢。

optionCubesTextviews = new TextView[cubesLength]; 
    for(i=0;i<cubesLength;i++) { 
     optionCubesTextviews[i] = new TextView(this); 
     optionCubesTextviews[i].setId(View.generateViewId()); 
     optionCubesTextviews[i].setTextSize(baseFont); 
     final RelativeLayout.LayoutParams optionCubesTextviewsParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); 
     optionCubesTextviewsParams.addRule(RelativeLayout.BELOW, solutionCubeTextviews[i].getId()); 
     if (i != 0) { 
      optionCubesTextviewsParams.addRule(RelativeLayout.RIGHT_OF, optionCubesTextviews[i - 1].getId()); 
     } 
     optionCubesTextviewsParams.setMargins(10, 10, 10, 10); 
     optionCubesTextviews[i].setPadding(20, 20, 20, 20); 
     optionCubesTextviews[i].setTypeface(Typeface.DEFAULT); 
     //String qTextColorColor = preferenceFile.getString("qTextColor", DefaultManager.qTextColor); 
     optionCubesTextviews[i].setTextColor(Color.WHITE); 
     optionCubesTextviews[i].setBackgroundColor(Color.parseColor(randomColorString)); 
     optionCubesTextviews[i].setText(Character.toString(shuffledAnswerAsOptions.charAt(i))); 
     optionCubesTextviews[i].setVisibility(View.VISIBLE); 

     //Adding to Layout in invisible state 
     rLayout.addView(optionCubesTextviews[i], optionCubesTextviewsParams); 
    } 
+0

工具onclicklistner然后设置optionCubesTextviews.setOnclicklistner(本);并将您的通用代码放在Onclick方法中,您可以使用这个方法来处理所有的textview。 –

+0

https://stackoverflow.com/questions/46108600/get-text-from-dynamically-created-edittext-on-click-of-a-button指这 –

回答

2

只需创建一个监听器并将其分配给您的视图,就像您使用其他任何属性一样。

OnClickListener l = new OnClickListener(){ 
    public void onClick(View v){ 
     // TODO whatever... 
    } 
} 

for(i=0 ; i < optionCubesTextviews.length; i++) { 
    optionCubesTextviews[i].setTag(i); 
    optionCubesTextviews[i].setOnClickListener(l); 
} 
+0

我怎么知道哪些textview被挖掘? –

+1

将位置设置为TextView的标签,如optionCubesTextviews [i] .setTag(i); –

+0

如果你想做不同的事情,只需使用不同的听众。 – alex

0

检查这个例子,我量身定做的,我希望它可以帮助你:)

这样您可以检查哪些视图点击。

public class MainActivity extends AppCompatActivity implements View.OnClickListener { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    // THIS IS MY MAIN LAYOUT 
    LinearLayout linearLayout = (LinearLayout) findViewById(R.id.main_layout); 

    for (int i = 0; i < 3; i++) { 
     TextView textView = new TextView(this); 
     textView.setTag(String.valueOf(i)); 
     textView.setOnClickListener(this); 
     textView.setText("TEXT VIEW " + i); 
     linearLayout.addView(textView); 
    } 
} 

@Override 
public void onClick(View view) { 
    switch (view.getTag().toString()) { 
     case "0": 
      Toast.makeText(this, "TEXT VIEW 1", Toast.LENGTH_LONG).show(); 
      break; 
     case "1": 
      Toast.makeText(this, "TEXT VIEW 2", Toast.LENGTH_LONG).show(); 
      break; 
     case "2": 
      Toast.makeText(this, "TEXT VIEW 3", Toast.LENGTH_LONG).show(); 
      break; 
     default: 
      Toast.makeText(this, "Default", Toast.LENGTH_LONG).show(); 
    } 
}} 
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