我在运行时有图像视图，在drawable中有字母图像。我希望当用户在编辑文本中输入一些文本时，他在编辑文本中输入的任何内容都会检查字母表并仅将那些alpbhabet图像放在视图中....
如果可能的话请提前帮助 下面是我在运行时放置imageview的代码.....
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
String str=text.getText().toString();
int num= str.length();
//generating image view at runtime
ImageView[] imageViewArray = new ImageView[num];
for(int i=0;i<num;i++)
{ count=count+1;
imageViewArray[i] = new ImageView(getApplicationContext());
imageViewArray[i].setImageResource(R.drawable.back_view);
RelativeLayout rl = (RelativeLayout) findViewById(R.id.relative);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
60,60);
lp.leftMargin=left;
lp.topMargin=top;
rl.addView(imageViewArray[i],lp);
imageViewArray[i].setId(count);
left=left+70;
}
}
});
答案 0 :(得分：1)
按照我的方式。您可以像下面那样绘制并设置为ImageView：
Drawable drawable = getResources().getDrawable(getResources()
.getIdentifier(edit_text.getText(), "drawable", getPackageName()));
imageView.setImageResource(drawable);
您可以将其添加到for循环中并实现您想要的效果。如果我没想错，那么这个解决方案就可以了。
答案 1 :(得分：1)
你有array个字母的图像（确保它们的顺序为A-Z）。你已遍历字符串中的每个字符。只需获取数组中alphabet的位置，如下所示：
int alphabetPosition = str.charAt(i) - (Character.isUpperCase(str.charAt(i)) ? 'A' : 'a');
然后按如下方式设置图像：
imageViewArray[i].setImageResource(photos[alphabetPosition]);
所以最终代码如下所示：
...
...
for(int i=0;i<num;i++)
{ count=count+1;
imageViewArray[i] = new ImageView(getApplicationContext());
int alphabetPosition = str.charAt(i) - (Character.isUpperCase(str.charAt(i)) ? 'A' : 'a');
imageViewArray[i].setImageResource(photos[alphabetPosition]);
RelativeLayout rl = (RelativeLayout) findViewById(R.id.relative);
...
...
答案 2 :(得分：0)
嗯，你可以这样做。
TextView.OnEditorActionListener设置为edittext，因此一旦用户在edittext中进行更改，您将获得回调方法。getResources（）则getIdentifier（ “一”， “可拉伸”， “包名”）;
答案 3 :(得分：0)
public class MainActivity extends Activity {
EditText ed1;
Button b1;
ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
img=(ImageView)findViewById(R.id.imageView1);
ed1=(EditText)findViewById(R.id.editText1);
b1=(Button)findViewById(R.id.button1);
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String str=ed1.getText().toString();
if(str.equals("A"))
{
img.setImageResource(R.drawable.a);
}
else if(str.equals("B"))
{
img.setImageResource(R.drawable.b);
}
}
});
}
这是您需要的代码..简单代码..相应地将其更改为您的修改...如果您喜欢它+1 ..
答案 4 :(得分：0)
您可以使用Text Watcher， //获取EditText的参考资料
// Attach TextWatcher to EditText
editText.addTextChangedListener(mTextEditorWatcher);
// EditTextWacther实施
private final TextWatcher mTextEditorWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// When No Password Entered
textViewPasswordStrengthIndiactor.setText("Not Entered");
}
public void onTextChanged(CharSequence s, int start, int before, int count)
{
}
public void afterTextChanged(Editable s)
{
if(s.equals("A"))
//set Image
else if(s.equals("B"))
//set Image
//so on
}
};
答案 5 :(得分：0)
String[] str = {APPLE,BANANA};
Drawable[] d = {"id of apple image", "id of banana image"};
private final TextWatcher mTextEditorWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// When No Password Entered
textViewPasswordStrengthIndiactor.setText("Not Entered");
}
public void onTextChanged(CharSequence s, int start, int before, int count)
{
}
public void afterTextChanged(Editable s)
{
int position = -1;
for(i=0;i<str.length;i++){
if(s==str[i])
position = i;
}
if(position!=-1)
img.setimg(d[position]);
}
};
答案 6 :(得分：0)
public class MainActivity extends Activity {
ArrayList<String> strArray = new ArrayList<String>();
int[] drawableArray ={R.drawable.red_apple,R.drawable.banana};
ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
strArray.add("APPLE");
//dArray.add(R.drawable.red_apple);
//dArray.add(R.drawable.red_apple);
// dArray.add(R.drawable.ic_launcher);
EditText et = (EditText)findViewById(R.id.et);
et.addTextChangedListener(mTextEditorWatcher);
img = (ImageView)findViewById(R.id.img);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private final TextWatcher mTextEditorWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// When No Password Entered
}
public void onTextChanged(CharSequence s, int start, int before, int count)
{
}
public void afterTextChanged(Editable s)
{
int position =-1;
for (int i = 0; i < strArray.size(); i++) {
Log.e(""+s.toString(), ""+strArray.get(i).toString());
if(s.toString().equals(strArray.get(i).toString())){
position = i;
}
Log.e("", ""+position);
if (position!=-1) {
Drawable d = getResources().getDrawable(drawableArray[position]);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), drawableArray[position]);
// img.setImageDrawable(d);
img.setImageBitmap(bitmap);
}
}
}
};
}
和xml是
<EditText android:id="@+id/et"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="APPL" />
<ImageView android:id="@+id/img"
android:layout_below="@id/et"
android:layout_width="60dip"
android:layout_height="60dip"
android:background="@drawable/red_apple" />
答案 7 :(得分：0)
package com.example.textwatcherwithimage;
import java.util.ArrayList;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.Menu;
import android.widget.EditText;
import android.widget.ImageView;
public class MainActivity extends Activity {
ArrayList<String> strArray = new ArrayList<String>();
int[] drawableArray ={R.drawable.ic_launcher};
ImageView img;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
strArray.add("APPLE");
//dArray.add(R.drawable.red_apple);
//dArray.add(R.drawable.red_apple);
// dArray.add(R.drawable.ic_launcher);
EditText et = (EditText)findViewById(R.id.et);
et.addTextChangedListener(mTextEditorWatcher);
img = (ImageView)findViewById(R.id.img);
// img.setBackgroundResource(R.drawable.red_apple);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private final TextWatcher mTextEditorWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// When No Password Entered
}
public void onTextChanged(CharSequence s, int start, int before, int count)
{
}
public void afterTextChanged(Editable s)
{
int position =-1;
for (int i = 0; i < strArray.size(); i++) {
Log.e(""+s.toString(), ""+strArray.get(i).toString());
if(s.toString().equals(strArray.get(i).toString())){
position = i;
}
Log.e("", ""+position);
if (position!=-1) {
Drawable d = getResources().getDrawable(drawableArray[position]);
Bitmap bitmap = ((BitmapDrawable)d).getBitmap();
// img.setImageDrawable(d);
img.setImageBitmap(bitmap);
}
}
//set Image
//set Image
//so on
}
};
}