Android快速实现触摸移动的悬浮窗

本文实例为大家分享了Android实现触摸移动的悬浮窗的具体代码,供大家参考,具体内容如下

1.触摸移动的悬浮窗的快速实现 UI

2. 悬浮窗实现

2.1 悬浮窗权限

为了偷懒,我SDK选择比较低的17,如果不配置权限,则应用会运行报错

正规流程,查询是否有悬浮窗权限,如果没有需要提示,并跳转到悬浮窗设置界面“即是否允许运行在其他应用上面”

<uses-sdk

android:minSdkVersion="17"

android:targetSdkVersion="17" />

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

2.2 悬浮窗配置初始化

这里主要关注 mParams.type 和 mParams.flags 这两个参数是核心,我们也可以使用View来加载一个布局,为了侧重悬浮窗界面,我直接使用TextView演示

private void initFloatWindow() {

if (mShow == null) {

mWm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

mShow = new TextView(this);

mShow.setText("I Love You");

mShow.setTextColor(Color.RED);

mShow.setTextSize(50);

mShow.setOnTouchListener(new View.OnTouchListener() {

int lastX = 0;

int lastY = 0;

int paramX = 0;

int paramY = 0;

@Override

public boolean onTouch(View view, MotionEvent motionEvent) {

switch (motionEvent.getAction()) {

case MotionEvent.ACTION_DOWN:

lastX = (int) motionEvent.getRawX();

lastY = (int) motionEvent.getRawY();

paramX = mParams.x;

paramY = mParams.y;

break;

case MotionEvent.ACTION_MOVE:

int dx = (int) motionEvent.getRawX() - lastX;

int dy = (int) motionEvent.getRawY() - lastY;

mParams.x = paramX + dx;

mParams.y = paramY + dy;

mWm.updateViewLayout(mShow, mParams);

break;

}

return true;

}

});

mParams = new WindowManager.LayoutParams();

mParams.width = WindowManager.LayoutParams.WRAP_CONTENT;

mParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

mParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;

// 实现悬浮窗可以移动的属性

mParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

mParams.format = PixelFormat.TRANSPARENT;

}

}

2.3 悬浮窗显示

mWm.addView(mShow, mParams);

2.4 悬浮窗隐藏

mWm.removeView(mShow);

2.5 完整示例代码

package com.wu.sufadi;

import android.app.Activity;

import android.content.Context;

import android.graphics.Color;

import android.graphics.PixelFormat;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.WindowManager;

import android.widget.TextView;

public class MainActivity extends Activity {

private TextView mShow;

private WindowManager mWm;

private WindowManager.LayoutParams mParams;

private static final int MSG_SHOW_WINDOW = 1;

private static final int MSG_HIDE_WINDOW = 2;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initFloatWindow();

}

public void click_show(View view) {

showFloatWindow();

}

public void click_hide(View view) {

hideFloatWindow();

}

Handler handler = new Handler() {

@Override

public void handleMessage(Message msg) {

super.handleMessage(msg);

switch (msg.what) {

case MSG_SHOW_WINDOW:

mWm.addView(mShow, mParams);

break;

case MSG_HIDE_WINDOW:

mWm.removeView(mShow);

break;

default:

break;

}

}

};

private void showFloatWindow() {

handler.sendEmptyMessage(MSG_SHOW_WINDOW);

}

private void hideFloatWindow() {

handler.sendEmptyMessage(MSG_HIDE_WINDOW);

}

private void initFloatWindow() {

if (mShow == null) {

mWm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

mShow = new TextView(this);

mShow.setText("I Love You");

mShow.setTextColor(Color.RED);

mShow.setTextSize(50);

mShow.setOnTouchListener(new View.OnTouchListener() {

int lastX = 0;

int lastY = 0;

int paramX = 0;

int paramY = 0;

@Override

public boolean onTouch(View view, MotionEvent motionEvent) {

switch (motionEvent.getAction()) {

case MotionEvent.ACTION_DOWN:

lastX = (int) motionEvent.getRawX();

lastY = (int) motionEvent.getRawY();

paramX = mParams.x;

paramY = mParams.y;

break;

case MotionEvent.ACTION_MOVE:

int dx = (int) motionEvent.getRawX() - lastX;

int dy = (int) motionEvent.getRawY() - lastY;

mParams.x = paramX + dx;

mParams.y = paramY + dy;

mWm.updateViewLayout(mShow, mParams);

break;

}

return true;

}

});

mParams = new WindowManager.LayoutParams();

mParams.width = WindowManager.LayoutParams.WRAP_CONTENT;

mParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

mParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;

// 实现悬浮窗可以移动的属性

mParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

mParams.format = PixelFormat.TRANSPARENT;

}

}

}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

以上是 Android快速实现触摸移动的悬浮窗 的全部内容, 来源链接: utcz.com/p/240934.html

回到顶部