Method for Realizing Vibration and Jitter Effect of Mobile Phone by Android
- 2021-11-02 02:43:10
- OfStack
Realization of Vibration and Jitter Effect of Android Mobile Phone
(1) The layout file is as follows
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/et_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginTop="16dp"
android:ems="10" >
<requestFocus />
</EditText>
<Button
android:id="@+id/btn_submit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/et_text"
android:layout_below="@+id/et_text"
android:layout_marginTop="38dp"
android:text=" Submit " />
</RelativeLayout>
(2) MainActivity. java
package com.example.test11;
import android.app.Activity;
import android.os.Bundle;
import android.os.Vibrator;
import android.text.TextUtils;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
private EditText et_text;
private Button btn_submit;
/**
* Mobile phone vibrator
*/
private Vibrator vibrator;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_text = (EditText) this.findViewById(R.id.et_text);
btn_submit = (Button) this.findViewById(R.id.btn_submit);
// System service of vibration effect
vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
btn_submit.setOnClickListener(new OnClickListener() {
String text = et_text.getText().toString().trim();
public void onClick(View v) {
if (TextUtils.isEmpty(text)) {
Toast.makeText(MainActivity.this, " Content is empty ", 0).show();
Animation shake = AnimationUtils.loadAnimation(
MainActivity.this, R.anim.shake);
et_text.startAnimation(shake);
/*
* The way of vibration
*/
// vibrator.vibrate(2000);// Vibrate for two seconds
// Below is the vibration that can make the vibration regular -1 Indicates no duplication 0 Cyclic vibration
long[] pattern = { 200, 2000, 2000, 200, 200, 200 };
vibrator.vibrate(pattern, -1);
}
}
});
}
}
(3) The two animation files used are as follows:
cycle_7.xml
<?xml version="1.0" encoding="utf-8"?>
<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:cycles="7" />
shake.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1000"
android:fromXDelta="0"
android:interpolator="@anim/cycle_7"
android:toXDelta="10" />
(4) Permissions to be used:
<uses-permission android:name="android.permission.VIBRATE" />
This effect can only be achieved on a real machine, not shown above.
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