यह उदाहरण दर्शाता है कि Android में लंबे टेक्स्ट के लिए TextView को स्क्रॉलेबल कैसे बनाया जाए ScrollingMovementMethod का उपयोग करके।
चरण 1: नया प्रोजेक्ट बनाएं
Android Studio में नया प्रोजेक्ट बनाएं।
चरण 2: लेआउट XML में scrollbars एनेबल करें
res/layout/activity_main.xml - android:scrollbars="vertical" जरूरी है:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="https://schemas.android.com/apk/res/android"
xmlns:tools="https://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
tools:context=".MainActivity">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:scrollbars="vertical" />
</RelativeLayout>
चरण 3: MainActivity.java में MovementMethod सेट करें
src/MainActivity.java - लंबा पैराग्राफ और setMovementMethod:
package app.com.sample;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView textView = findViewById(R.id.textView);
String para = "Mohandas Karamchand Gandhi (/ˈɡɑːndi, ˈɡændi/;[2] Hindustani: [ˈmoːɦəndaːs ˈkərəmtʃənd ˈɡaːndʱi] (About this soundlisten); " +
"2 October 1869 – 30 January 1948) was an Indian activist who was the leader of the Indian independence movement against British colonial rule.[3] " +
"Employing nonviolent civil disobedience, Gandhi led India to independence and inspired movements for civil rights and freedom across the world. " +
"The honorific Mahātmā (Sanskrit: \"high-souled\", \"venerable\")[4] was applied to him first in 1914 in South Africa[5] and is now used worldwide. " +
"In India, he was also called Bapu, a term that he preferred[6] (Gujarati: endearment for father,[7] papa[7][8]), and Gandhi ji, and is known as the Father of the " +
"Nation.[9][10]\n\n" +
"Born and raised in a Hindu family in coastal Gujarat, western India, and trained in law at the Inner Temple, London, Gandhi first " +
"employed nonviolent civil disobedience as an expatriate lawyer in South Africa, in the resident Indian community's struggle for civil rights. After his return " +
"to India in 1915, he set about organising peasants, farmers, and urban labourers to protest against excessive land-tax and discrimination. " +
"Assuming leadership of the Indian National Congress in 1921, Gandhi led nationwide campaigns for various social causes and for achieving Swaraj or " +
"self-rule.[11]\n\n" +
"Gandhi led Indians in challenging the British-imposed salt tax with the 400 km (250 mi) Dandi Salt March in 1930, and " +
"later in calling for the British to Quit India in 1942. He was imprisoned for many years, upon many occasions, in both South Africa and India. " +
"He lived modestly in a self-sufficient residential community and wore the traditional Indian dhoti " +
"and shawl, woven with yarn hand-spun on a charkha. He ate simple vegetarian food, and also undertook long fasts as a means of both " +
"self-purification and political protest.\n\n" +
"Gandhi's vision of an independent India based on religious pluralism was challenged in " +
"the early 1940s by a new Muslim nationalism which was demanding a separate Muslim homeland carved out of India.[12] In August 1947, Britain " +
"granted independence, but the British Indian Empire[12] was partitioned into two dominions, a Hindu-majority India and Muslim-majority Pakistan.[13] " +
"As many displaced Hindus, Muslims, and Sikhs made their way to their new lands, religious violence broke out, especially in the Punjab and Bengal. " +
"Eschewing the official celebration of independence in Delhi, Gandhi visited the affected areas, attempting to provide solace. In the months following, " +
"he undertook several fasts unto death to stop religious violence. The last of these, undertaken on 12 January 1948 when he was 78,[14] also had " +
"the indirect goal of pressuring India to pay out some cash assets owed to Pakistan.[14] Some Indians thought Gandhi was too accommodating.[14][15] " +
"Among them was Nathuram Godse, a Hindu nationalist, who assassinated Gandhi on 30 January 1948 by firing three bullets into his chest.[15";
textView.setText(para);
textView.setMovementMethod(new ScrollingMovementMethod());
}
}
चरण 4: AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="https://schemas.android.com/apk/res/android" package="app.com.sample">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
ऐप चलाएं
लंबा टेक्स्ट वर्टिकली स्क्रॉल होकर दिखेगा।
