Android clear webview thread, free memory, avoid OutOfMemoryError

Question

I am displaying a fairly large image in a webview so that the pinch-to-zoom functions and other conveniences for viewing are already available.

It displays correctly the

Answer 1

Efficient way ever:

WebViewActivity.java

public class WebViewActivity extends AppCompatActivity {

    private WebView mWebView;
    private RelativeLayout mWebViewParent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web_view);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        mWebViewParent = (RelativeLayout) findViewById(R.id.layoutWebViewParent);
        mWebView = (WebView)findViewById(R.id.webView);

        // Other stuff

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        destroyWebView();
    }

    private void destroyWebView() {
        mWebViewParent.removeAllViews();
        if(mWebView != null) {
            mWebView.clearHistory();
            mWebView.clearCache(true);
            mWebView.loadUrl("about:blank");
            mWebView.freeMemory();
            mWebView.pauseTimers();
            mWebView = null;
        }
        android.os.Process.killProcess(android.os.Process.myPid());
    }
}

activity_web_view.xml

AndroidManifest.xml

Hope this will help you.