问题
I used this example and tried to add it to my edit text programmatically like editText.setBackgroundResource(R.drawable.edit_text_back);, but it does not work. How can I accomplish this? Any suggestions or ideas?
EDIT The editText is defined programmatically as well.
EditText editText = new EditText(this.getApplicationContext());
I added this to a table row
TRIED
editText.setBackground(getResources().getDrawable(R.drawable.edit_text_back));
editText.setBackgroundDrawable(getResources().getDrawable(R.drawable.edit_text_back));
EDIT TEXT CREATION
TableRow row = (TableRow) findViewById(R.id.table_row_kind);
TableRow.LayoutParams rowP = new TableRow.LayoutParams();
rowP.setMargins(10, 0, 0, 0);
editText = new EditText(this.getApplicationContext());
editText .setGravity(Gravity.FILL_HORIZONTAL);
editText .setLayoutParams(rowP);
editText .setFilters(new InputFilter[]{txtFilter});
editText.setBackground(getResources().getDrawable(R.drawable.edit_text_back));
row.xml
<TableRow
android:id="@+id/table_row_kind"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dip" >
<TextView
android:layout_width="250sp"
android:text="Kind"
android:textAppearance="?android:attr/textAppearanceLarge" />
</TableRow>
回答1:
Well i also have the same issue which i solve by the following way. Its is an xml file put it on your drawable folder and set this xml into the background of that EditText
activity code:
EditText foo = (EditText)findViewById(R.id.editText);
foo.setBackgroundResource(R.drawable.backtext);
backtext.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<solid android:color="#ffffff" />
<stroke android:width="1dip" android:color="#000000"/>
</shape>
回答2:
create a edittext.xml file into drawable folder
<?xml version="1.0" encoding="utf-8"?>
<!-- res/drawable/rounded_edittext.xml -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" android:padding="10dp">
<solid android:color="#FFFFFF"/>
<stroke
android:width="1dp"
android:color="@android:color/black" />
<corners
android:bottomRightRadius="15dp"
android:bottomLeftRadius="15dp"
android:topLeftRadius="15dp"
android:topRightRadius="15dp"/>
</shape>
in your main.xml
<EditText
background="drawable/edittext.xml"
/>
回答3:
This Code is working for draw border to any view programmatically
package com.example.border;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.ShapeDrawable;
public class ShapeDrawableWithoutBottom extends ShapeDrawable {
private float mLineWidth = 1f;
private final Paint mLinePaint;
private int color;
public ShapeDrawableWithoutBottom() {
// No color specified, so call constructor with default color White
this(Color.WHITE);
}
public ShapeDrawableWithoutBottom(int layoutColor) {
// use the setter defined below, to set the main color for this drawable
// setColor(color);
setColor(layoutColor);
// setup the Paint for drawing the lines
mLinePaint = new Paint();
mLinePaint.setStyle(Paint.Style.STROKE);
mLinePaint.setStrokeWidth(mLineWidth);
}
public void setColor(int color) {
Paint paint = getPaint();
paint.setColor(color);
}
public void setLineColor(int color) {
this.color = color;
}
public void setLineWidth(float lineWidth) {
mLineWidth = lineWidth;
mLinePaint.setStrokeWidth(mLineWidth);
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
// bottom black line
// //////////////////
mLinePaint.setColor(Color.parseColor("#00000000"));
mLinePaint.setAlpha((int) (255 * 0.0)); // Opacity 90%
canvas.drawLine(getBounds().left, getBounds().bottom - mLineWidth
* 0.5f, getBounds().right, getBounds().bottom - mLineWidth
* 0.5f, mLinePaint);
// translucent grey rim
// /////////////////////
mLinePaint.setColor(color);
mLinePaint.setAlpha((int) (255 * 0.7)); // Opacity 70%
// top
canvas.drawLine(getBounds().left, getBounds().top + mLineWidth * 0.5f,
getBounds().right, getBounds().top + mLineWidth * 0.5f,
mLinePaint);
// left
canvas.drawLine(getBounds().left + mLineWidth * 0.5f,
getBounds().bottom , getBounds().left + mLineWidth
* 0.5f, getBounds().top + mLineWidth, mLinePaint);
// right
canvas.drawLine(getBounds().right - mLineWidth * 0.5f,
getBounds().bottom , getBounds().right - mLineWidth
* 0.5f, getBounds().top + mLineWidth, mLinePaint);
// top white line
// ///////////////
mLinePaint.setColor(Color.WHITE);
mLinePaint.setAlpha((int) (255 * 0.5)); // Opacity 50%
canvas.drawLine(getBounds().left + mLineWidth, getBounds().top
+ mLineWidth * 1.5f, getBounds().right - mLineWidth,
getBounds().top + mLineWidth * 1.5f, mLinePaint);
}
}
回答4:
Try this in this i have dynamically added edittext then set its background and it works.
LinearLayout layout=(LinearLayout)findViewById(R.id.layout);
EditText edit=new EditText(MainActivity.this);
edit.setBackgroundResource(R.drawable.abc);
edit.setMaxWidth(100);
edit.setMinHeight(100);
edit.setText("hello");
layout.addView(edit);
回答5:
Use
editText.setBackground(getResources().getDrawable(R.drawable.edit_text_back));
Instated of
editText.setBackgroundResource(R.drawable.edit_text_back);
回答6:
This is you can make the border for the edit text. Save this into res/drawable
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle">
<gradient android:startColor="#f9f9f9"
android:centerColor="#ffffff"
android:endColor="#ffffff"
android:angle="90"/>
<stroke android:width="1dp" android:color="#2B547E"/>
</shape>
</item>
</layer-list>
回答7:
I'm aware that this is terribly late. But to achieve this very very easily, just use Material components.
You will need to use Material components for your app theme:
<resources> <style name="MyAppTheme" parent="Theme.MaterialComponents.Light.NoActionBar"> <!-- Define your theme color values here. colorPrimary etc. --> </style> </resources>Define your EditText style in your styles.xml file:
<style name="MyOutlinedEditText parent="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"> . <!-- Define your edit text style options here. textSize, color, stroke width and color --> </style>
Usage (in xml):
<EditText
style="@style/MyOutlinedEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
Applying the theme programatically is a bit more effort. If needed I'll explain that bit as well. That said, it's never really needed to create an editText programatically (this is a personal opinion of my experiences).
来源：https://stackoverflow.com/questions/19706307/android-add-border-to-edit-text-programmatically