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How do I make a dotted/dashed line in Android?
This example demonstrates how do I make a dotted/dashed line in Android.
Step 1 - Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 - Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/parent" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" android:gravity="center" android:background="#33FFFF00" android:orientation="vertical"> <TextView android:id="@+id/text" android:textSize="18sp" android:textAlignment="center" android:text="click to show toast at top" android:layout_width="match_parent" android:layout_height="wrap_content" /> <ImageView android:layout_width="match_parent" android:layout_marginTop="10dp" android:layout_height="5dp" android:src="@drawable/dotted" android:layerType="software" /> </LinearLayout>
In the above code, we have text view with image view. Image view contains a dotted background. So create dotted.xml in drawable as shown below -
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <solid android:color="@android:color/white" /> <stroke android:width="1dip" android:color="#4fa5d5"/> <padding android:bottom="10dp" android:left="10dp" android:right="10dp" android:top="10dp"/> </shape>
Step 3 - Add the following code to src/MainActivity.java
package com.example.andy.myapplication;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
int view = R.layout.activity_main;
TextView text;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(view);
text = findViewById(R.id.text);
text.setText("Dotted line for text view ");
}
}Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run 
icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen -
The above result contains a dotted line.
Click here to download the project code
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